Why? Are you planning on living 150 years?
This is what I was going to say. Why would anyone care seeing as we'll all be dead.
Bitcoin will continue and no one can stop it beacuse many people use bitcoin for many purposes and it can be a way to donate some charity or enviromental movement to help people or the mother earth but the one reason is it helps people to make a good life
Bitcoin could have been and gone in this timeframe. Something much better may also take over so bitcoin is far from safe or indestructible.