Goes both ways.
If you go back enough, rich kids were in boarding schools, poorer kids were at work, and even if they weren't, their parents were still working. Ask any child of a miner how much of a family life they had in the 1900s.
I was raised by parents who spent just as much time at work, but couldn't be in touch with us whilst they were there. If they had work to do at the weekend, they had to go to their office. If they were abroad, we received a letter taking days to arrive.
If your dad was a doctor or a vet, let's face it, he was never home, it was more than widely accepted that they would deal with emergencies 24/7.
Techonologie allows us to be in touch, now we can exchange photos and messages through the days. Parents can say good night from the office, whilst in the past, they might have made a phone call at best.
We can stay home weekends and go on holidays because we can be in touch with the office and not waste an entire day because of that one important phone call that needs to be made, and you can access all your documents online.
In an ideal world, parents would work 9 to 5, have 10 minutes commute and be home the rest of the day. It wasn't the case when my parents were young, and it still isn't the case today. It's untrue to believe things have changed that much.