You are completely misunderstanding why people choose not to have funerals, and your sneering judgements are ill-informed and crass.
It’s quite something to criticise other people for being ‘very emotionally unintelligent’ when you apparently are incapable of grasping the simple concept that different people grieve in different ways and that not wanting a funeral has absolutely nothing to do with how sad (or not) people are. Not having a funeral doesn’t mean a family are trying to avoid grieving, ffs. It just means that they’d prefer to express that grief in a way that feels sincere and appropriate to them, rather than by staging a ritual that means nothing to them.
Of course funerals can mean ‘closure’ for some families, especially if they have a religious faith. Great! Have funerals then. I’m not judging you for it. But other people might get ‘closure’ in different ways. Just because funerals are meaningful to you, that doesn’t mean they’re meaningful for everyone.
Neither of my parents wants a funeral. My dad doesn’t feel his own parents’ funerals were meaningful at all. He saw their bodies when they’d died and he didn’t feel he needed to see coffins going through a curtain to say goodbye. Our ‘closure’ as immediate family didn’t come from the funerals, even though the services were very personalised and nicely done. None of us felt the kind of emotion at the funerals that we’d felt as a family when we were talking and reminiscing. My dad felt that his parents’ funerals just added pointless stress and, if anything, disrupted his grieving process rather than helping it.
i’m sure my siblings and I will say our own goodbyes when my parents die, but we just don’t need a funeral for that and my parents would rather we didn’t go through a ritual none of us benefit from.