The less time you spend with your kids the less of a bond you have with them
In my personal experience I found/find that to be untrue.
When I was about 5 my Da took on a job that meant I only saw him for maybe 10 minutes one two evenings a week and a few hours on the weekend. Previously he worked 9-5 Mon-Fri
For my 2 younger siblings (God knows where they came from) that was the norm until they were at least 6 & 8.
But because he was a good Dad he made sure he knew what was happening in our lives, in school, how swimming was going, what we wanted for Christmas.
We all had a very close bond until he died a few years ago.
I don't know what the answer is, I do think that society general acceptance of men walking away is a bad thing. Personally I could & would never have anything to do with a man or woman who did this, and have actively ended a friendship with someone over this point.
We knew them as part of the social side of one of OH's hobbies for a wee while, got on well, started doing dinner nights out just the 4 of us. Then one night it came out that he had 2 children, who lived with their Mum in his home town. He had moved 4 hours away to move in with ex-Friend. He'd arrived in a hell of a mood and she explained it was because his Ex-wife had 'set' the CSA on him. But they didn't see what he should pay as she wasn't letting them see the children.
She was so oblivious she told us her version of the story; when he first moved well clearly he couldn't be expected to pay the privately agreed amount, moving costs etc. And then expecting him to travel up and down every 2nd weekend was ridiculous. And ExW was being difficult, they made the reasonable suggestion that she put them on a direct train to them, she refused saying she'd happily escort them half way but he'd have to be there for her to hand them over, which according to her was just a waste of his time really. So if they can't see them, why should he pay for them.
The kids were 7 & 5............................................................
(At this point he'd not bothered to see them or pay any support for a year)
I walked out while OH sat gaping (drink had been taken and I knew I couldn't trust myself)
We had a tense conversation a day or two later, she still couldn't see what was wrong in his & her attitude, and now 2 years later can't see why we don't want to be 'friends'.
We're the only ones of the group that have expressed any condemnation, all of the rest of them see it as 'normal'
She's due soon, maybe it will click in then, I just hope she doesn't find out the hard way.