mine should have paid child support from the age of 4 (or 3 or 5 i can't remember lol) and never did. he lied about where he was living/income so he didn't have to
i saw him at weekends but stopped when i was 12. he basically got fed up of coming round (2 minutes drive literally round the corner) if i didn't want to go out with him. which i often didn't as he'd just sit me in front of the tv,which i could do at home. so he got annoyed and said "do u just want me to not bother then?" and i just went yeah. he basically couldn't be arsed but didnt have the guts to just say it. so he made his 12 yr old kid say it.
he was also pretty stupid and reckless. treated my mum badly too. he was young though. but then so was my mum and she had to tsruggle on her own