Well, I'll counter your anecdotal Chinese mothers with mine. I didn't get to do sleepovers, ever, and my parents drove over to pick me up from school if they thought I was spending too much time on extracurriculars and not working on math homework. It was pretty fucking humiliating.
Anecdotal means "Not necessarily true or reliable, because based on personal accounts rather than facts or research" so the claim that it his mother is, itself, anecdotal.
Kind of inherent in casual, internet conversation... hard to avoid.
Hm. Pedantically, his experience with his mother isn't Based on personal accounts, it is his personal experience. So to him anyway it wasn't anecdotal. But to everybody else, sure. Like all reported empirical evidence.