I used to think that occasionally buying chocolates isn't too bad for my regular. After all they are women. But I was wrong. Only because we have business transaction and it's all about money in the end and treating this relationship any different would have consequences. Buying gifts or chocs for mum, sister, girlfriend, wife, daughter or a female friend is different than buying gifts for a ML or WL. But buying gifts or chics for a sugar baby is also completely different and has a category of its own.
Should you do it or not? Only if you are prepared for the consequences.
There's nothing wrong with being nice just don't let anyone walk all over you. Meaning some people reciprocate with goodness and some accept it as they are entitled to it. Be wise!