What is the meaning of "to have roots" in this sentence?

Question

Adopt a child
Adoption is the legal process that gives a new family to a child whose birth family can’t care for him or her. Adopting a child is a life-long commitment.

To experience healthy development, and create a sense of their own self-worth, children need to have roots and feel they belong to a family that cares for them.

Answer 1

I believe in this context "to have roots" means "to have stability in life", "to be well grounded".

Answer 2

A Beginning to remember.

Answer 3

They need to have a solid foundation that properly nourishes them to grow healthy and happy.