Dating with children and shared care

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It's beginning to grate.
I have my children fulltime, no shared care with their Father. When I have met Men with children who see their children regularly, weekly. I've noticed when they have their children they're not available and suggest a date when they're free. Not thinking I also have my children on that date.
I arrange a babysitter for dates. I don't see why it can't work both ways.
I can understand more for very young children but less so older children and teenagers.
I do all the mundane day-to-day things for my children and want quality time with my children too. Not only when someone else isn't having quality time with their children.
Does anyone else find this? (I do also work FT) Or AIBU?
(I found this pattern in a previous relationship. Free access to his teenage children whenever he wanted and would occasionally see them in the week and they'd spend every weekend with him and he wasn't ever free at weekends day or eve).
Yes children do come first but this also includes my own.

But you see your children other days when you’re not dating. They have less time with their children and want to see them

Can’t you understand that?

Hmm to be fair if they don’t see their children often then I think they are absolutely right to spend that time with their children not palming them off with babysitter so they can date! They can do that when they don’t see them. And I say that as a lone parent who never has free time

Most men I've dated recently have 50:50 shared care and I'm not referring to people that don't see their children often.

Even at 50/50 they want to see their kids when they have them.

And? Still not every day, why would they arrange babysitters when they could just wait a few days, it’s not their fault you have your children full time 😕

Exactly what @PumpkinKlNG said.

My kids are grown up and I’m recently dating someone. Kids are here usually 2/3 nights a week. I don’t see him those nights. If he has a problem with that that’s tough.

Why would you want to date a man who was willing to see a woman over his kids during their contact time!

@WaterBottle123

Why would you want to date a man who was willing to see a woman over his kids during their contact time!

Exactly this...