henetha, I read your post with interest ( and perhaps a little sadness)
I am grandmother to a little adopted one.
The baby was removed at birth due to the parent's inability to parent their first child.
A wonderful childhood is being enjoyed, with lovely experiences, good times with cousins and an excellent education.
I do, however, wonder if the regrets you refer to will overshadow the teenage years and beyond.
Of course, these parents did not choose to walk away, they were simply unable to rise above their difficulties with poor mental health, substance abuse, offending behaviours and so on; perhaps that will be easier to understand.
I'm an only child and craved a sibling, so I over- compensated and had four children.