First of all: During training usually you need to learn when classes are over. So you will need someone to care about your child, when you are doing that in the evening.
Life in the airlineindustrie always depends on the airline you fly for:
My airline (European Flag Carrier) offers a lot of different part time contracts. That helps quite a lot. But you will also be away from home a couple of nights each month, depending on the part time model you work and the aircraft type you fly.
If you work for an airline which offers only day trips, you will not need care during the night, but usually half of the rotations start very early in the morning when airport opens, or ends late in the evening shortly before the airport closes.
To summarize: There are very few ( I know not even one) 9 to 5 jobs as a pilot.
Also to think about: Flying an aircraft has a lot do with experience/ training/ doing things very often in a similar way: So if you work part time and do, for example, only a few landings a month,(this can go on a long range fleet to only one landing a month in average) every landing will be an adventure