I really don't like funerals and don't see why anyone should feel obliged to go to one if they don't feel like it.
The point of a funeral (to me) is to dispose of the body & to show support for other people who are grieving, should they need and want it.
In my view, attending a funeral has nothing to do with showing your love and/or respect for the deceased, who isn't there and therefore won't mind either way. (Nb I don't believe in an after-life so I think that the deceased can't 'see' who went to their funeral and/or appreciate or be unhappy re the turnout!)
I recently 'organised' a cremation for a close, much loved relation. My sibling & I agreed that we didn't want to invite anyone else, as she was elderly, had mostly elderly friends & we wanted to have as simple a send-off as poss.
Some people (I contacted to explain) were a bit surprised to hear we were doing it this way, (as it is not the usual thing to do), but totally understood our motives, & I suspect many were even quite relieved not to have had to decide whether or not to attend/make the effort to come. (Nb The people who would have wanted to come were mostly old people, some living far away, while the cremation was at 9am, in a v cold month. Plus we were not doing a meal/gathering afterwards.)
I knew I wanted to grieve privately, & in my own way, after a previous funeral had left me angry/upset, being a semi-religious thing & very alien to all my strongly held atheist beliefs. So, I didn't want a 'ceremony' of any kind. Luckily, my sibling (who has similar views) felt the same so we decided to just sit in silence for the 30 min crematorium booking. (No music. No words.) And who would have wanted to come miles on a cold morning just for that?!
Later on, I tried to visit all the people I thought would have liked to attend. I felt I had more time to chat with them one-to-one, doing it that way and it was a lot easier for them not to have to travel. (I made the effort.)
I think it must be hard/depressing for older folks to have to go to funerals of their old friends, thinking it will be their turn soon? So maybe they don't have to go? And maybe they shouldn't go, unless they really WANT to?
Maybe we should live for today more, and when people we love are gone/dead, we should remember them fondly rather than pretend that ceremonies will make any difference? (Maybe just raise a glass to them at home?)
IMO, there's absolutely no need to congregate in a church, or a crematorium, far from home at 9am on a freezing cold morning, just to PROVE that you liked/appreciated/loved the deceased and/or that you will miss them. (Unless you are religious, of course, and are unable to escape the fixed 'rules' of how we should deal with a death.)
They, (the dead), should have know who loved/liked/appreciated them when they were alive.