As others covered, base-10 is simple and compatible with the way kids are taught numbers so for everything besides temperature it’s pretty easy. And as pointed out all science is metric so if you pursue it in higher ed it’s not like you’re converting between the two a lot.

Kids use rulers from an early age too and those usually have metric on one side and imperial on the other so they get introduced to the idea that there’s different units to measure the same thing.

Honestly the real infuriating thing is that you have to use imperial when you’re an adult because that’s what devices are incremented in and what material dimensions are advertised as.

Like do any mildly complex carpentry and you’ll instantly wish a metric tape measure was easy to come by and that the standard framing timber was a 4x9 or whatever the metric equivalent is to an imperial 2x4 (1.5 in by 3.5 in).

Unless you’re the sort of masochist that likes fraction arithmetic