This is why people critique the nuclear family—the degenerate village around the children that just consists of the parents, maybe grandparents at holidays. It’s a recipe for overworked adults.
I've got a Mexican American friend that lives multi-generationally and loves it. He's a few years out of high school with a good job in management and a nice car, money in the bank. His older brother gets help parenting from Tio and the grandparents, and generally everyone gets along well. He's almost kept up with me in savings for property and I'm married (our pay is pretty similar, but I have dual income). American culture optimizes for wastefulness and puts too much of an emphasis on independence, especially when arrangements like this exist that actually can lead to greater individual freedom in the long run.
I read an interview once with an American woman who moved to Italy with her Italian husband. They lived in the same apartment building as her in-laws and in the morning her son would walk down to Nonna's for breakfast.
I love the idea of family living within walking distance but in their own domiciles, like townhomes or apartments or condos in the same building. This is another great argument for mixed zoning. A 55+ condo building in the same neighborhood with single family homes for large families and smaller townhomes/apartments for families that are just getting started.
We are living on a Farm. So we have a huge main building where the aunts and grandma lives and we live in a different building. Kids can just run over, since it's no road in sight and everything. I feel rather blessed