Wow - this thread has set off a few issues.
First - You don't have to travel abroad to find keeping in touch with family difficult. In fact, sometimes it's easier! Drive times are pretty punishing, sometimes requiring an overnight stop off. Flight times (if flights even exist) are often longer that flight times to European capitals.
Have a look at the journey times I know friends face to visit family members split across the UK.
London to Aberdeen
Cardiff to Newcastle
Cornwall to Berwick on Tweed
London to Orkney (including flight/boat).
Belfast to Cambridge
Second - many people in the UK have had to remain apart from loved ones, some of whom were dying or being treated for an illness that made them vulnerable. This has happened even though they lived in the same city!
Third - funerals are not essential to attend. We might want to attend for all the right reasons, but it's not essential we do. There are lots of ways to pay our respects. Weddings can wait, or go ahead with restricted numbers. Nobody is saying people cannot marry. They are saying, big celebrations can wait.
Fourth - holidays are not essential, so neither are holidays abroad. Some people never travel abroad - ever- and manage to survive. Those desperate enough can holiday in their own country.
Fifth - we've got many ways of keeping in touch - FaceTime being one, home made videos, phones etc. Think how people managed before fast travel - occasional letters. We are better off that ever before with the many ways we can keep in touch. Maybe they don't replace a cuddle - but they go some distance to making things tolerable.