Bitcoin could literally change life of a person, but only if the person doesn't have the knowledge and experience, of course that potential and benefits would be useless. Plus people could be wealthy in many ways not only to Bitcoin, it can't changed someone's life without the person's action and initiative. It would still depends on their mindset cause you know Bitcoin's benefits still you choose to laze around and go with the flow. But I don't argue with that, cause some people are really knowledgeable in many ways so they might have other options which they think is much suitable for them. For example building a business, investing into Bitcoin and crypto industry might be complicated, but other investment is complicated as well that could give you the wealth everyone's goal.

Sometimes I wonder how people only view investment in Bitcoin as a way to get rich without looking at other benefits that it comes with, Yes the possibility for Bitcoin to increase in price over time is there, But thinking that the price will perform what it did from 2010 when it was traded around 0.2 cents dowqn here at price of $27k and making investment base on that and hoping that Bitcoin will do same in the price in future, such mindset need to be changed because BTC may not attain such performance in again.

When someone talks about how much money they would have made if they had bought BTC back in 2010 or 2012. Only one thing came to my mind --> Don't rub salt in the wounds    Because sometimes I also have such thoughts about how and in what circumstances I would be aware of BTC. For example, few days ago I was watching this video --> https://www.youtube.com/watch?v=ejiqbzqmxSE which was uploaded 12 years ago. And I wished that, I would have watched this video back in 2011.

But at that time, there was no internet in my area, I was not aware of the internet and the new technologies going on in the world, even though I was around 13 years old at that time, I did not use a smartphone till I was around 16 years old. But I wished, if my elders would have used the internet and they would have seen this video and bought BTC then we might be rich. But as a religious person, our Islam tells us to not regret things that we did not get because there is a reason behind everything.

Now coming to the DCA strategy, I also liked this strategy, because I got my Signature payment every week and that works as my consistent investing in BTC on a weekly basis and For the past 3 months not a single week has passed in which I did not did DCA. And I am very glad that I am on this path and pray to Allah that he will bring sucess out of it.

I myself had sold it long time ago, being blinded with the small profit I made from those bitcoin I had, I made a really bad mistake. It's easy to say that "if I hold it until now" where we can't really predict that we are on this price point right now. If I know that bitcoin will appreciate up to it's current all time high, I would probably not sell it despite of the profit that I got before but yeah, it's something that a lot of us missed which is failing to realize what kind of feat does bitcoin can achieve. Move on and leave the regrets, it's the lesson I've learned from the years of being in the cryptocurrency space. For sure there are other opportunity out there.

When I started using Bitcoin for the first time, I did not think about investing in it. Normally I started using it to pay someone. I did not really understand why itss price fluctuated so much. Slowly I was using it and saw sometimes it goes up and sometimes down. I didn't even know when I understood how the market price changes. But now I know for sure.

My life kinda changed because I made my pocket money out of Bitcoin. I won't say it's a significant change. It's not possible to change the living significantly without investing enough.

For me bitcoin can change lives in ways that have NOTHING to do with "profits" or "gains", to me it's all about what bitcoin represents which is a level of freedom that we've never seen before.  It represents a new money system that takes away the tyranny of traditional fiat that our government "overlords" have placed upon us.

This is how bitcoin has changed my life, not profits.

Op when I see your topic, O said I must come and correct the word "can". As a user of the coin and as a beneficiary of the technology, bitcoin has changed lives and not can change, it has already changing lives and it is producing millionaires and Billionaires every bull run. I noticed bitcoin in the year 2015 in a seminar and I was like what is this all about, though I opened a wallet but the way the instructor taught us was not clear enough so after the seminar I forgot everything. But still having small knowledge about it, and I also wanted to buy from one the participants buy the guy refused so I abandoned the whole idea if joining bitcoin. And this I have already said I'm my first experience on bitcoin. If I did  buy it at that time by now I would have been a millionaire from the technology.

 Yes it is true Bitcoin made a lot of impact in people life when it’s got it high time all, same way it also cost a lot to to some that were not wise enough to know when to step in. Those that invested saw the twist Bitcoin bring, it changed a lot of people and companies into becoming millionaires. So yeah Bitcoin can change one’s life and it will continue to change lives, it not too late to invest still on Bitcoin, very soon Bitcoin will be mainstream and when it does, we are looking at seeing a new all time high maybe over $150k. Anyone who doesn’t see this as an opportunity to improve their standard of living is just ignorant of the truth.
  There’s so much golden opportunity in the crypto space and it’s is time to join the moving train, if it happened before then it can happen again, if the power holding countries like the U.S and Russia support the use of Bitcoin in every institution this will give it more credibility. And this is going to be the case very soon. Bitcoin is here to stay, I don’t see bitcoin leaving anytime soon or never. The world is fast evolving and bitcoin is a technology that can see that it all happen.

In hindsight, you can now call it is a bad mistake, but when you were selling then i'm sure you were happy with the profit you made, that is why i think people shouldn't be sad that they sold their BTC, as long as you were happy with the decision then, you shouldn't be sad now in hindsight.
You can't say that yet until they have been refunded, take note too that they are not going to be refunded 100% of what they lost.