We don't have any problems. My wife sent money before we met and still works. We both contribute to the household budget and she sends money to her parents.
We pay for a niece to go to a private school and have helped brothers and sisters in the past. We do talk about it before we send extra money, but we are lucky that they only ask in a real emergency such as medical problems.

The siblings we have helped will pay what they can for medical bills and sometimes do without telling us until after the event.

I don't mind as they make me so welcome when we visit and did do before we helped out. We know they work hard and don't waste anything, and as they have givn us some land, it;s somewhere to build a house for retirement.