Flip it around. Under what circumstances would you allow another person to freeload off of you for 18 years? Take up space in your house, eat your food, require

Flip it around. Under what circumstances would you allow another person to freeload off of you for 18 years? Take up space in your house, eat your food, require you to drive them around, need money for their activities and fun time, use your TV, dirty up the house but not clean it, never cook a dinner or wash a dish, and in general have a good old time until they decide to move out. "I didn't have a choice in being here" as a response to "Do your Chores" makes it sound like the parents went off into some land of nirvana and kidnapped a blissful native for the sole purpose of enslaving them to their will. Having children is how our species procreates. It's the only option if we want to continue as a species. Requiring that everyone living together pitch in and do a little bit of work to keep the household running smoothly is far, far from an onerous requirement.