I agree, because it's expensive. But a modest American home was never that expensive for most adults, hence "house warming parties", and thus I'm fairly sure was socially acceptable.
I mean, I went to house warming parties 5 years ago when housing was not a lot cheaper in the Bay Area. As long as you don’t throw it in peoples faces you’re probably fine.
And “can never afford” seems like an extrapolation of the last ten years ignoring corrections that came before that.
For those of us who lived through 2008 it’s amazing how quickly we went from “i’ve never over pay for a house again” to “housing only goes up”.