Yes, it's not yet too late. Actually, if ever bitcoin is still after twenty years, I believe that people in that age will surely invest in bitcoin. Though in that case, we may think that it is already late, but I think there's no such t hi in as late if you really like to have it. There's no need to think about investing late because you can still have the chance as long as you are still alive and kicking. When opportunity knocks, don't hesitate to open and accept it rather than refusing it.