I'm going to piss off the single fathers here, but.....I make sure never to get involved with a man who has kids he doesn't have full custody of. I tried a few times, but it just gets WAY over complicated and I have enough complication on my own, thankyouverymuch. Unfortunately, IMO, that elimimated all men that I met with kids.
And I know for a fact there are many men who would never ask me out because I had a kid, and I understood that completely, so I don't think I'm being hypocritical
I've gone out with men with adult kids and it's been fine, but while they're growing up....no.