I think that too many parents brought their children up, mistakingly thinking that giving then everything they want was a way of indicating their love and care for their children. No wonder so many have grown up with a sense of entitlement to whatever they want, and judge their parents affection by how much they give or buy them.
This is why people like the OP think they are 'bad' when they stop doing it, either because they can no longer afford it or because their own belongings will be damaged by family members.
It is time some parents cut the umbilical cord and told their adult children to act like adults and not keep expecting their parents to treat them like children, whether it is money, goods or childcare, Parents should be the lender/giver of last resort, not an immediate solution to their adult children's every problems.