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.
“Theirs not to make reply / Theirs not to reason why / Theirs but to do.” (you don't learn the last two words of that poem until later, long after you are done with school)