Why the Downvote? It is true.
what does it add to the conversation? The fact that incoming UCSD freshman cannot solve the problem is being brought up as a failure. That this six year old can solve it does nothing to address the issue of UCSD students being unable to solve a problem that we all expect them to. It it as if you are a stoichastic parrot, bringing up a fact that, yes, it happens to be true, because it is nearby on some vector space. Hence the downvotes.
It may come across as bragging to some. You can decide if that is fair.
I can’t do a standing backflip. This is a true statement and contributes the same amount to a discussion about higher education in the US as “I know a kid that can do algebra”