I think it’s really hard for parents to “let go” of their children when they become adults.
You can’t choose your family, so you can never predict how well you will get on with your parents and siblings once you are an adult.
As parents, you (generally speaking) love your children and want to get on with them.
But children grow up, get married and have children and create their own immediate family.
Sadly, that may mean that you are no longer close to your children.
Having children changes everything as often their is behaviour you might accept from your parents, but you don’t want to expose your children to that behaviour.
Sometimes the personalities just don’t mix well.
I’d go mad if my parents or inlaws lives close to us. I would rather pay for childcare than rely on family as it causes so many problems.
I love family but I need space from them too.
Their comments should be heeded, don’t give up your life if they are not desperate for you to live close to them. You are likely to end up disappointed and have given up a lot for nothing.