The lack of empathy on this thread, if indicative of the general population, is really sad. I know we are all having it tough but do people really need to be so tone deaf to other people's circumstances?
Most people in the UK (in England at least) have, at various points in the past year, been legally allowed to go and visit their close friends and family, indoors, with little to no social distancing. A lot of them were legally allowed, even if it was not advised, to visit them for one day at Christmas. Whether or not people did this when they were allowed depends on individual circumstances and risk assessments. I feel awful for people, ie in Leicester, who have effectively never come out of lockdown.
My mum and several close family members have lived abroad for twenty years now. Are you saying it's their "fault" for not predicting a global pandemic two decades before the fact, for not factoring that in when she met the man she married? I've heard it all now.
I'll be legally allowed to go and stay with my in-laws in two months time, if the roadmap goes to plan. I can see them in my garden from next week. Right now I have no fucking idea when I'll be able to see my mum. The not knowing is awful, and I miss her so much it hurts.
Seeing your family is not a holiday. It is one of the basic building blocks of human society. Stop framing it as a bloody frivolity!