So are you like..... bringing this up with people, or..... ?

It just doesn't seem like a topic that introduces itself naturally in conversations. There's a difference, if people think you're going out of your way to announce that you're not attending your mother's funeral, versus just 'Meh, it's not a big deal to us, I don't think I would.'

In other words you're probably not an asshole for feeling this way, you're probably an asshole for presenting it the way you are. But that's pure conjecture. Idunno what people are thinking.