As much as I know about bitcoin and understand how the network operate, I don't think there is anything stopping me from making use of the network for my own benefits, since everything about bitcoin is pointing towards privacy and how we could make profit in our financial economy, it is unprofessional or being uninformed of us to discover someone is leaving bitcoin for other any reason.

Those who understand Bitcoin know that it takes time to get good return from Bitcoin. You can't become rich with Bitcoin overnight. Even those who bought Bitcoin at lesser price like at 100 USD in early days have to HODL it for years to sell it at higher prices. We might not be able to get return that early investors of Bitcoin got but still if we invest today then there is bright chance that we will get decent return in coming five years.  Price of Bitcoin is down at the moment and that is good opportunity to invest in Bitcoin for long term.    

Looking for wealth with a small capital is gambling however Bitcoin has given people with low capital to invest small but consistently with the DCA instead of gambling with it (trading) but then patience is the problem, since Bitcoin requires long term holding, those set of people can't wait longer but try to get rich with Bitcoin in a short period with the little they have, that's a risky way to get more Bitcoins.
 It's not like some people don't understand Bitcoin, they know that patience is required but prefer they risky way and getting it by chance, instead of waiting longer for the "decent return" you mentioned.

Most don't invest in bitcoin simply because they can not accumulate and hold for as long as is necessary, they prefer investments where the returns come back as quickly as possible and we all know that's not bitcoin investment, if profit could come as quickly with bitcoin then most of the people who don't invest in bitcoin would be investing in it,  it just doesn't favour their mindset so they instead go for something else that does, their reasons aren't complicated the way most people think they are, they want something that can pay fast and bitcoin doesn't work that way and that's also why those who are currently started out their bitcoin investment already have something else that they are generating income from because the simple truth is that bitcoin investment is long term and can sometimes require holding for over a decade.

But those who truly know about bitcoins well won't believe in this facts. History will always tell what better for everyone we just have to trust bitcoin. Those people will know after abandoning bitcoin what they left behind. Well i don't have the right to curse anyone what people do is their own choice. One thing is sure and that is every fact is baseles for true bitcoiner.

If bitcoin as an asset wasn't volatile then it probably won't be worth it to hold it for a long time, how many people out there do you see holding stablecoins, they might not jump around in price the way bitcoin does but they are still not worth anything compared to bitcoin.
People naturally fear what they do not understand, this is part of the human nature even more so since bitcoin can not be predicted, no one knows what's going to happen to it tomorrow but if it's history says anything it's that bitcoin has never been a disappointment.
Bitcoin investment isn't something you do if you are planning on getting quick profit from it, it only pays if you are investing and holding for a long time, anyone looking for quick profit should not be looking at bitcoin.
This is not a flaw, it's this way by design and the truth is that even though it's not obvious for some, every asset experiences it.
Really? People should invest in what works for them instead of bothering with what they can't handle and then saying it's not opportunistic enough.
Don't be careless enough to lose your own wallet and you will most likely not get hacked, hacking is not as easy as most people think.
This is a problem because if your country has regulations against bitcoin or cryptocurrencies then you probably won't be able to hold.
I will always say that if you can't handle it then don't do it, your emotions don't have any place in your investment.
If you really want to be able to accumulate and hold bitcoin then do so with your discretionary income.
Just do whatever works for you, just because Mr A is a successful bitcoin investor doesn't mean you will be one too.

Some people lose interest in Bitcoin because of one bad experience they've had with cryptocurrency investments in general and even ponzi schemes. These people who have had bad experiences already have phobia for all forms of online investments. So, no matter how much you try to convince them, they will always refer you back to their past. It is better you let such persons be than to convince them when they've already made up their minds about bitcoin.

Those leaving Bitcoin and seeking remedy somewhere like they call it, have the right to do that. Bitcoin is not running some kind of promotion inviting anyone to come and hold it, we all choose what we want and if buying and holding Bitcoin meets what we need it for or not,  Profit is one of the reasons we choose Bitcoin there are a lot of other purposes that makes it stand out among other choices.

Those reasons which mentioned are correct but in my view the other factor why seems the people are lost interest to bitcoin because before invest these people have put high expectation to bitcoin that they thought the price of bitcoin always be increase without through an bear market so, when bitcoin cannot reach their expectation they starting to pesimistic and didn't dare to invest more.

In the other hand in my country, bitcoin reputation is not always good even some citizen which domination by the laborers who lack education of bitcoin said they cannot understand what is bitcoin and if they buy and hold it these people are fear bitcoin volatility will makes them losing their money.

If people don't prepare their finance, risk management well enough for long term holding, it's good and safe if they unplug and take profit. It's always good and enjoyable if you take profit, especially as said if you don't plan to hold for long term and don't have proper financial and risk management for that.

Taking profit, enjoy it will be very good and like vitamins for people to enjoy the market, and help them having more motivation to return, and stay in this market. It's helpful for people to have a kind of break time and watch the market so that they will understand the market more, and it's helpful for their return with better activities and profit in the future.