DH is 52, I'm 38, we have been together for 6 years and we have a DD who has just turned 3. I have 2 children from my previous relationship who are 9 and 10, he also has 2 children who are 20 and 22.
DH has a role which requires long hours, roughly he leaves for work at 7.15, gets back at 6./45. He doesn't need to work these long hours really, he could start at 9 and finish at 5.30 but he likes to be "first in and last out". He could also WFH 2 days a week but doesn't.
I do dinner for the kids at 6pm, I find any later is too much chaos, then DD gets her bath around 6.30/45. DH plays no role in bath time, he says when he gets in he is tired and just wants to eat, so I do it. I also do bedtime as it is the same story. He goes out for post work drinks every Thursday without fail, normally getting home around 10/11pm. On the weekends, he barely interacts with DD, he drives I don't so if it is the weekend my older kids are here he takes them to clubs, he says he is too old to get on the floor and play, he doesn't do weekend bath/bed as he says bathtime hurts his back and she sleeps better for me. In the summer he plays golf basically every Saturday. We do family trips to museums etc. but he often goes ahead with the older kids.
I'm a stay at home mum so I expect to do more of the parenting but I basically do it all. This really upsets me as he is very close to his older kids. Neither live in the UK now but he calls them weekly etc. He also just seems to have put more effort in with his older kids. He is French, his ex wife is Italian and when they were little they each spoke their own language to their kids, so his kids are perfectly fluent in French, Italian and English. I suggested we do the same for DD with French but he said no, it was hard work and he only did as parents who are no longer with us didn't speak English but had the kids for 2 weeks every summer,
He is also in my opinion not giving DD the same opportunities as he did for the older kids. His older kids were privately educated, one excelled in sports to the point they paid £50,000+ for her to train in Europe as a teen. He has said as my children aren't privately educated he won't be paying for it for DD, he also said he won't facilitate hobbies to the level he did in the past as it was an expensive decision and annoying. However he happily pays for his older kids flights several times a year (not saying he shouldn't, it just feels like he is being tight with DD but not his older kids). He has even once said "DD isn't as pretty as DSD is she" which I went mad at and he apologised (then saying he just meant as she is pale and his older DD has lovely olive Italian skin).
I feel like I resent him now for his lack of involvement, whenever I try to talk to him about it he says he is sorry and will try harder and does for a few days then stops, he blames his age.
AIBU to think he is being awful to DD?
Leaving wouldn't be easy and I know here it's often said to just leave but I'm not in a position to do that and I don't actually want to leave.