why do some women think its ok to put their careers before their children

I was in the military when my children were born and got out when my youngest was 6 years old. My wife is a nurse, we usually worked different shifts to spend more time with kids and save money on daycare. I did often deploy for months at a time, once when my daughter was very small, she didn't remember me when I came back home, we had to get a sitter when the wife left for work for a couple weeks till she got used to me being back in the house. Today, that daughter is a nurse and works in the same facility as my wife, my kids are pretty well adjusted and are productive members of society. If your niece doesn't know her mother, there is more distancing than just a few deployments.