What I don't understand (not the only thing) is why people would want an underpaid and exploited person looking after their DC. That can't be a good way of ensuring high quality care. We sometimes have one of DD's nursery staff babysitting and I pay more than the going rate because I:
Want them to feel positively towards us and DD.
Think that the going rate is crap for a qualified and first aid trained childcare professional.
Don't want to pay them less than our cleaner - DD is the most precious thing in the world to us and we value the people who care for her very highly.