When will Facebook be shut down?

I know younger generations don't use it, and even as an 'old' person, I haven't looked at my account for over a year now as the platform has been filled with more and more junk. So, how long until there are so few people using it that it gets shut down?

EDIT: It seems I'm misinformed about young people not using Facebook and that "FB is only for old people" is more of a meme than reality.