I moved into my parent’s house for a spell several years ago to save money for a down payment. (Married, one kid, brought the au pair with us, lol.) These days, my parents live about 10 minutes away and we sleep over a couple of weekends a month. If we didn’t already live out in the exurbs near them we would have moved in with them during COVID.
Living closely with family is routine outside the US and is only considered “lame” in a handful of developed countries.