> I think it's in your head.

It may be, but it also could be the community/town he lives in. I certainly do know schools where you need to play games to get admission, and dressing like a schlub would exclude you (which is fine, given I have alternatives - he perhaps doesn't).

> The methodology of IQ tests is also entirely questionable. I'd hardly be judging myself as a parent based on this.

Fully agree on ignoring the IQ (why would one even get it tested?)

However, I suspect he does see other signals of decline, and sees those who went to the school achieve more.