Huh? I did my own laundry starting from like 10, and cooking the family dinners most nights (until I reached high school and football practice got in the way). Not sure what 'US' you are talking about, maybe the generation before the 80s?
Yeah, I overstated the reality for rhetorical effect, but it also would depend on what part of the US. Gender roles have changed in some places, but not so much in others.
> until I reached high school and football practice got in the way
That says a lot about US culture right there.