Bit of back history- I live 350 miles from my elderly parents and have done for 35 years. My brother- 10 years younger and single ( never had a long term relationship) lives near them.
I know my mum desperately wishes I was closer, but I keep in touch and visit when I can. She loves Xmas but my dad is a miserable old bugger- bah humbug- and pours cold water on it all. They don't get on and just put up with each other really.
Anyway- she's just told me that my brother has bought himself a slow cooker. Wow! she asked him if he would invite her round for a meal once he'd worked out how to use it. I doubt he will. He has never in all the time he's owned his home ( he's 49) asked them round for a meal. When I go and visit he doesn't invite me round - I have to ask- and simply calls in to our parents for a coffee. He has few friends and never invites anyone to his house anyway.
I jokingly suggested to my mum that my brother ought to be cooking xmas dinner for them now- they are late 80s- instead of her cooking it for him and she just laughed and said he wouldn't know how to.
I then made the point that he never asks them round or cooks them a meal. She came up with all the silly excuses you can imagine ( for him) saying he always eats later than they do, or that he has to walk his dog ( big deal) or that he is busy ( looking after himself, no one else.)
I suppose what I am saying is that he doesn't do his bit except in very practical ways, like bits of DIY and gardening, and could do more.
Basically I think he's selfish and inconsiderate as maybe single men are when they get to 49 and never had a relationship or kids.
Would you suggest to him that he ought to invite her round more often and maybe cook something now and then?