Bitcoin will always be public because of the blockchain, but it's different if there are certain people who use bitcoin for their own benefit.
It is precisely that bitcoin will be more accessible in the future considering our technology continues to grow.
I am thinking the same way, people can access and will have their own bitcoin but the security will continue to improve and more strict.
Well, I hope not. for now many countries are trying to develop this, so if bitcoin is growing in the future, it could be easier to access. well, in the near future we might be able to see the results.
Is there anything to be done right now and don't expect too much if bitcoin will develop in the future. It can also be, but it is very hindering, because there are still many countries that prohibit using (investing) bitcoin