On the other hand, they are unintuitive, less common with every passing year, and I'd rather my children get any recess than add "learn to use another antiquated tool" into the school curriculum. I do complicated math for a living, but nobody's offended that I didn't ever get good at using a slide rule.
Having taught math to children, analog clocks are a great way to learn and apply fractions. I suspect that children's inability to read analog clocks tracks pretty well with their abysmal math skills, like fractions.
So maybe we don't "add" analog clocks to the school curriculum, but we instead replace some nonsense with analog clocks and fractions.
Kids were bad at fractions even before digital clocks.
I can't remember the last time I saw someone with a mechanical watch other than as a fashion statement.
25 years ago, my household had mechanical alarm clocks, a mechanical clock on the oven, and multiple mechanical clocks on the walls of different rooms. Today, I think I might have a broken mechanical watch in my "you should probably fix these things" piles.