You had such a difficult time with the abusive mother. What a terrible experience for a child who only wants and needs love. I agree, you should be paid for your work. But as you say, there are many people out there who will take advantage, and it occurs in all arenas.

I used to run a charity thrift store. We gave away free clothing to our clients, but wealthier people were expected to pay a little bit for the items we sold, and with that money, we helped people pay their rent. Yet many of these wealthier people couldn't understand why they should pay anything at all.