My mum is on her own, no husband or partner and is registered disabled. Over the years me and my sister have taken it in turns to have her at ours for Christmas dinner, when we don't have her we will se our respective in-laws or have them to us, it is a juggling act as we also have to tie in with all other siblings and thier familes/ inlaws.My brother however will not invite her to theirs as ' they go to his partners family' every year ( his partners family live in the same road as them so they aren't travelling). My mum does loads to help brother and his partner with child care, and she has never been invited to them for even a little bit of tea, at Christmas or any other time of the year, and to be honest it really annoys me, we all lead busy lives but she is our mum and she is on her own. His point is ' well you or sis can have her so what the problem? But I think he should, now he has a partner and a child have his mum to them once every three years.