There are many ways to cover your basic needs that don't require you to live on your own in a one-bedroom apartment and three square meals a day. In fact, most of humanity survived by pooling resources. The ability to live entirely on your own being common is a very recent phenomena as is three square meals a day.

All your stating is that people shouldn't have options where they can pool resources. As someone supporting two older adults in my household, you're saying that if they can't get hold a livable wage jobs (unlikely given that one has Parkinson's) but still still could earn money and contribute to the household. You've not made my circumstances harder by legislating away opportunities for them to contribute.