Maybe he is not doubting but he is just asking how bitcoin can help everyone in terms of finances, just like other beginners, they ate always thinking that bitcoin is only for making people rich but they don't know how it could be, they also don't know some other purpose of bitcoin so they only focused on making their lives rich using bitcoin, cryptocurrency might be popular all over the world because there are already a lot of big names are interested with bitcoin.

I believe bitcoin is our future.

Day by day more and more people or company watching this investment and most of them are so interest to using bitcoin for he's payment method or for their investment.

I think what OP have in mind is another cryptocurrency will replace Bitcoin in the future. Maybe OP is doubting Bitcoin's future because as the technology evolves, people also evolves and someone could invent a coin that could surpass Bitcoin two times or even more, that's just my thoughts about it. But on the bright side, I think Bitcoin will continue to dominate other Cryptocurrency and will remain the king of blockchain in the future.

What I've have in mind is that if Bitcoin and fiat will continue to coexist in the near future, because I really can't imagine existing without fiat as an alternative payment.

We had been talking about Bitcoin's future too much already since 2017.

"Conditions to last longer and better in the future?"
Go back to years around 2011 and think about people thinking the same about the future of Bitcoin. Their future thoughts were happening right now. There could be people back then that were proven wrong right now and there could be people rejoicing that it is actually happening.

The future of Bitcoin is bright. Institutional investors are interested in Bitcoin, more authorities become bitcoin-friendly.

There's been a lot of speculation about Bitcoin. It's been a crazy rollercoaster ride. But what exactly is the future of Bitcoin?

Bitcoin frees us from the power of banks to hold or freeze our accounts for whatever reason. Bitcoin allows us control over our finances, the way it should be. Bitcoin is the perfect fit for this digital age where technology is the new norm. If you need money, you can simply access it through your phone.

Bitcoin provides opportunity and financial inclusion for unbanked people. Bitcoin is already making a huge impact in the world. Schools in Africa are even being built with the help of crypto. Crypto is everywhere now

Now that's just one of the many opportunities that Bitcoin can bring. Just imagine a future where bitcoin is universally accepted. although bitcoin is just another “pump and dump” scheme. Maybe bitcoin will down after 1-2year then it will pump again it will break all past records.

The more people, countries, and prominent entities and figure accept bitcoin in one way or another only in that way could we secure bitcoin's future disposition in the society, since it heavily relies on people's opinion about it, so far we're seeing great promise since more and more people, countries especially those who have ditched their currency like Venezuela are starting to use bitcoin as a mode of payment and mode of income too. Well put, The possibilities are indeed limitless when it comes to bitcoin. However, we have to understand that as of the moment, it is mostly used to make an earning out of, so it could really be possible that bitcoin might remain as such, at least to the society's eyes.

The future will remain a secret and no one can know about it. But seeing current developments that are increasingly sophisticated and transactions can be easily carried out, of course Bitcoin will become increasingly recognized and adopted by several other large companies.
the development of the world of technology is the trigger for the increasing use of bitcoin. Currently bitcoin is at its peak, there will be a time to go down but not be forgotten. Bitcoin will continue to survive, there will be more and more enthusiasts.

I really think that bitcoin has become unstoppable at this point, the fact that finally some institutional investors have decided to come to this market means that if in the future politicians want to take action against bitcoin for some reason or another that we are going to have some of the most powerful people in the world advocating for bitcoin, which is something that we never had, which means that at worst we are going to get regulations and not bans.

And that is all what we need, as long as bitcoin remains legal in the most powerful countries around the world then it doesn't matter what kind of regulation they try to put to it because a dedicated user can always bypass them if he wants.