Earlier quoted context omitted.
I think the main problem with the personal care assistant isn’t so much the pay is so low but rather it’s hard for people to actually pay someone full time (or even part time) to care for someone.
A full-time care taker is also often living in the house. So, even if they are are only getting paid $22k, that money isn't really going to any expenses. They are likely getting paid more than that anyways.
There might be people with special arrangements but if you are like the people I interact with then you probably engage with an assisted living agency for anywhere from $18-$30/hr. Let's take the low number as an example. $18 * 24 * 365 = $157.7K per year. How many people can afford $150k just for care? Not very many.
And $18/hr is on the very low end of the spectrum. If you're at $30+/hr that's $250K+ on up not including medical, insurance, etc. IME, caretakers are normally paid out-of-pocket, too. It's expensive business, especially if you have to do it for any period of time.