I don't think it matters if you live in a multi-generational household as much as it matters how much you interact with your extended family.

I live with my wife and child only, but I still have to constantly have to fend off "suggestions" from aunts, uncles, and my in-laws (especially my in-laws). "Buy a house", "drive this car", "look for a job at...", "go on holiday to...". In many ways I think I have the worst of both worlds - limited support from family because they live in a different city, but plenty of interference.