May I ask why you'll "never go to one", and perhaps how old you are?
Don't have a big family and the ones that are alive live far away. I'm not going to waste my time to travel for a funeral. Not many friends either to be honest.
And as for myself, I don't think having the crematorium dispose of my cremains counts as a funeral but whatever.
The ones of people who I care about are aware of what I want. I have a chronic and incurable disease where sudden death isn’t that unlikely. I’ve come close once and I don’t remember being scared and it didn’t hurt. Just a thing that happened.
Nobody should be surprised by it at this point. Accept that it might happen and if it doesn’t something else will get me in the end.