EDIT: A lot of you are reading into the tweet while still somehow agreeing with the overall message. No one is saying we should eliminate music programs or that we should teach toddlers about healthcare plans. The tweet is making this thing called a --checks notes-- joke, that also conveys the message that schools could teach more practical skills that young adults will need going forward.
It's also important to expose kids to a major facet of human culture. If they don't come from a musical household, they may never get exposed to the intoxicating phenomenon of making musical sounds.