Dream big, that's awesome!
Some of my coworkers make less money than I do, and they're on their own, so I know I could do it if I needed to, but it just seems unnecessary.
Culture, that's got a lot to do with it. My parents were born and raised in Mexico, and if it were up to them, both my brothers and their wife and kids would be living with us.
Word. My parents house is paid off, but I chip in about $1000 a month for my rent, groceries, billls, which even then, still leaves me with plenty of expendable income. I make sure to try and save my money though, they've been talking about retiring and going back to Mexico, and I tell them they might as well sell the house then. I'll be alright.