Nannies do have a huge impact on children, especially if their parents are always working or traveling, or just are not involved with the kids. My mother was a nanny of two children, whose parents are rich and did not have any clue on how to raise kids. She started when she was 18 years old taking care of a 2 year old and a 5 year old. She was a part of their family, I grew up with them. Their mother passed away when they were young so my mom was like a second mom to them. I saw them as my older siblings. Since their father wasn't really involved in their lives and was always working they always thought of my mom as their parent. Till this day we are very close with them going to graduations, celebrating birthdays, spending the holidays with them or hanging out with them.