My idea of a holiday is usually Europe for a week, eating out etc. I think we need to scale it back to seaside break in the U.K, maybe eat more in the accommodation. It just doesn't feel like a holiday sometimes, same Co-op burgers, different kitchen wink
With kids I think going on holidays is important, it's good for them to have an adventure and have happy family holiday memories. But little kids will just as much enjoy a cheap self-catering UK seaside/ countryside break to a more expensive overseas city break eating out. So I wouldn't cut off holidays completely, I'd prioritise a yearly cheap holiday over wine/ lunches out.
It's sad that your dh doesn't want to come on holiday with your kids. Why is that? My father never wanted to come on holiday and as a little child it was disappointing.
But in terms of choosing between a 'nicer' holiday over day to day treats, that's a matter of opinion, there is no right or wrong. Personally I'd rather have some little daily treats rather than scrimp all year for an expensive holiday. But I can understand why you feel differently, especially if you end up doing most of the cooking and housework on "holiday" (just a guess).
I think the best option would be a compromise, where you both have some treats through the year and all enjoy a cheaper holiday. If you really can't agree, I'd do the split personal money and you take the kids away and he has his sausage rolls, but that does make me wonder his your marriage will get through bigger problems if you can't navigate this as a pair.
And surely you can afford to get your hair cut cheaply??