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.
Teenagers should learn this. Not in elementary school.
Have you heard hot cross buns? The tune has three notes, everyone plays the melody because that's all their is, and it's like 8 measures long. Maybe even 4 and we just played it slow, I don't remember. It's the beginner song. Elementary school kids can handle it, especially since we had to sing and dance every year up until then (also simple stuff for kids).
Not to be confused with three blind mice.