I'm happy your sister was able to tune down the gift giving and still maintain the part of her that wanted to give in the first place.
I know selfless people like her that give out of a kind heart and a need to put smiles on people's faces. Unfortunately, there are people that would neglect the kind gesture and would only take advantage of it.
At the end of the day, everything is best done in moderation.
Nicely written.
You're very apt. People are lurking around to take advantage of such kind hearts