I don't think we need to worry about the future of bitcoin, as it is getting more popular day by day and it will reached to many people worldwide in coming years.
I agree. The ecosystem is way advanced now for it to just disappear overnight. Options are becoming available where they weren't before. More and more people are getting involved.
Yes bitcoin is getting popular now and many new users have joined the community in recent times, some of my friends have also started using bitcoin after I recommended them.