I ask this seriously because I'm surrounded by teenagers regularly asking me these questions.
Why become a health worker, when the hospitals are going bankrupt?
Why work at a pool, when they are closing the pools?
Why become a teacher, when nobody is having kids?
Why become a programmer when code will be generated?
Why work in a restaurant, when everything will be a self-serve kiosk?
Why become a truck driver when the trucks drive themselves?
Why become an anything, when everyone is growing broke and old? Who will you sell anything to? Who will you work for?