To bring this thread back to life.
How would the dynamic change if the married kids are working and better off than the parents?
It's difficult for parents to take support form their kids.
But the kids should help pay their way and buy extras. Such as 'pick up the matza order' and pay for it. Or do the grocery shopping.
If the parents need help.
If not, maybe the kids just pay their own way, rather than pay the parents way too.