Tbh I'm not suprised you feel like a taxi, but I would say the issue is your DP. He sounds rather useless and I wouldn't have had a child with a man, who relies on me to fetch his DC.
What would he do without you? Or without a DP who couldn't drive?
I don't think you're really jealous about the kids, it's more his inability to understand your feelings or appreciate how much you do, that he should be doing.
So I'm not judging you, but I feel you could have done better than a man like him. He doesn't sound like such a catch.
How much effort will he make to see your DD if you split up?
All his fighting in court to see his kids, boiled down to you being a free taxi.
If you decided to go away on one of his contact weekends, what would happen?
He needs to pull up his socks and make more of an effort. I wouldnt and couldn't be so dependent on a partner to see my kids. He needs to do more and do it on his own, instead of you dragging your
baby out to pick up his kids.
He doesn't bother learning to drive because you do it for him. You make it far too easy.
You probably started doing it all to be a good girlfriend in the beginning, but it's too much now.
I agree with the pp above..put it back on him and ask if his kids aren't worth learning to drive for.
If you and he split, you know now he won't see your DD much if he can't be bothered with public transport.
If he was my dad...I'd soon as I got older, I'd soon feel ashamed he was so reliant on you to do the pick ups.
Unless he faces the impact of you not doing it...he won't be motivated to learn how to drive.
You set a low bar with him.