Some more information:
This friend is married with kids; she gets minimum wage and her husband earns a good salary (more than minimum wage but not spectacular). She gives her mother $300 every fortnight which supplements her pension. In addition, her mother will call her frequently about things she needs more money for. My friend did also mention that her mother likes to play scratch-off lottery tickets and she's pleased she can help her to do that.
The whole thing came up in conversation because she wants to move to a bigger house in a better area; when she saw a place she liked, she mentioned it to her husband which resulted in a big argument because he said they won't get finance, let alone be able to afford it, because of all the "lavish donations" they give to her mother. Unfortunately things escalated and her husband told her a few things he's been holding in for a while, plus he pointed out how they never have money to do the most simplest of things because she's busy giving it all away. Sure, it could've been worded better as it definitely hit a nerve; but, I think he was right!
The pension here in NZ is not means-tested - everyone gets it - and if pensioners need help with food or other bills, then they can apply to a government welfare agency (they have to jump through a few hoops to get what they need, but this agency is fair and reasonable for the most part). The pension itself is not huge, but a lot of people manage to live on it just fine. I asked my friend why she feels the need to help her mother when all this help is available to her; that's when she said it's what adult children should do for their parents. She said it very matter-of-factish, as if it's a common thing. I really don't think it is.
This friend is a born and raised Kiwi - I do know that in some cultures the money goes back to the family, but that's not what's happening here; it's just some weird viewpoint she's picked up along the way. I do know her mother has absolutely no savings - she worked most of her life but has nothing to show for it.