I'm sorry but this isn't true either. Amberlynn's one "chore" was to feed the animals and all she'd do was dump half a bag of food out on the countertops at 2am. On fucking paper plates because she was too lazy to wash pet dishes. Oh, it was also her "chore" to let the dog out to shit/piss, but she didn't bother doing it half the time and so the dog would shit in the garage. Amberlynn talked about having chores, but aside from a handful of staged shots showing Amberlynn rinsing out a fucking mug or whateer, the only chores she ever really showed were being done by Krystle.
Krystle's parents didn't make her leave the house, either. Those gorls were shut-in NEETs. They went out once a week, with mommy and daddy. They'd go grocery shopping (though Krystle and Amberlynn got their own grocery money to buy whatever they wanted), then out to eat as a family, and usually Krystle and Amberlynn would get dropped off at the mall for a few hours to spend their allowance like 13 year olds. Amberlynn fucking loved it.
Krystle's parents didn't make her do anything. It was incredibly foolish of Amberlynn to squander the opportunity she had to better herself while under their "care".