On the topic of "support your friends", if there's a funeral for someone you weren't super close with but your friend knew well and you're not sure whether to go, I would recommend just going, sitting up the back, offering your condolences if the opportunity comes up, and leaving.
I've failed to do this twice. Nobody else said or did anything, but I regretted it.
I've failed to do this twice. Nobody else said or did anything, but I regretted it.