yes all depends on bitcoin users. bitcoin used more and more in this life then the better the future of bitcoin in the world. bitcoin depends on the strength of people in this world.
I gotta say now there are so many peopla using bitcoins from different countries. Different people, different users, diifferent strategies and ideas how they used and manage their own bitcoins. I can see that someday in the future bitcoin will be really succesful because of it's users.
It is true that a lot of countries especially big ones happens to be recognizing and legalizing Bitcoin but can it cope up with the demands like what we are facing now which there are a lot of unconfirmed transactions happening. If this issue is solved and upgrade the services it offers then it is in no doibt that Bitcoin's future is bright ahead.
Without the transactions confirmation delay issue solved it's worthless to have many people using BTCs. The experience when using it won't be positive and Bitcoin can have negative feedbacks from many users, it's not good for the future of Bitcoin. Better to stay with the currently amount of users for now and when this problem be solved, the mass adoption can start without worries.
The problem is that bitcoin is not a product in the traditional sense, when you cannot meet the demand of the public you can suspend your ads, build more factories and stuff like that but we cannot do anything like that with bitcoin, if people start to adopt bitcoin there is nothing to do to stop them.
Well this is not actually the problem this is the strength of the bitcoin. The bitcoin inventor was well aware of this and the reason that a single bitcoin consists of 100,000,000 satoshi is that in the future it will not be possible for many to get even a single Bitcoin because of its price in the market therefore people will keep satoshis. this is the strength my dear.