So, if they raised you well enough to survive into adulthood and you're not a sociopath, you're not going to let them starve in the street.

There's a huge diffeence between a healthy enegaged okder person and living on the street. Most aren't going to look after you and most aren't going to see you starve iwb the steeet. You'll get somethibg on between and basic care from most, it's why the kids ditch them into to aged care facilities in the developed world.