I live in the UK but am not Briitsh, and am shocked by posters saying not to contribute! I think the bereavement is the big difference—tasing two children in that circumstance is hard, and I would not be ok with my nieces having less than they would otherwise because of their mother’s death. I find it very genuinely shocking that people say nieces are not your responsibility—if anything happened to their other parent, I imagine you would be considering stepping up as a full parent figure surely? I feel when one parent dies, it is the job of family to step up to the plate and provide what they would have tiebreaks (within reason).
But these aren’t homeless orphans. Yes, the poor girls have been through an awful tragedy, but they have a father who could have done so much more. Not going to private school wouldn’t have been ‘having less’ - it would have been having exactly what most children have. Their father could have moved to a smaller house or a less desirable area. I appreciate the OP hadn’t shared these figures when you posted, but his mortgage is £2k a month! That doesn’t suggest a modest home. Most crucially however, he could save a fortune by not pouring drink down his throat.
People saying uni is a privilege, not a right: would you seisojky be ok with a family member not being able to get an education because their parent died? And you’d just look on and shrug?
But she’s HAD an education - just not a university-level one. Millions don’t. You rightly point out that part-time work will be harder to come by post-COVID - but so will full-time work. Will that degree really be the golden ticket you think it is? And again, I’d expect her parent to do all he could to step up to fund this before expecting a family member to do so.
So much could happen in five years. (And it will be five years - no way will the brother not expect the same for his other daughter.) The OP could get made redundant. She could want to move house. She hasn’t mentioned a partner, but what if she starts a relationship and finds she’s relying on her partner for luxuries like holidays because a chunk of her income is going on her nieces? What if the brother remarries and his wife isn’t too keen on contributing to the children’s uni costs? Will the OP happily keep on paying while her brother enjoys double-income comfort - and end up resenting her nieces because of it?