I'm the father of a three year old son who attends a workplace nursery in the UK. I'm together with his mum and admit can be a lazy so-and-so (in life in general, I make efforts not to be) but certainly don't consider anything beneath me, or "for mums". Part of that is that I drop off and collect my son from nursery, as well as things like changing nappies, doing bed time, medicine, cuddles, and so on. So far so unremarkable, it's not the 1950s.
Some of the staff at nursery, though, consistently treat me like I'm incompetent, or an idiot who doesn't understand how one human being looks after another, or say things like "Look, [son]! Daddy's come to take you to mummy". I'm told everything slowly and multiple times. If both of us (mum and dad) go there for a meeting, I'll barely get a glance. They'll also simply not listen to things I tell them to the extent that I ask my wife to tell them something so that they'll remember. It's not something that tends to happen in the rest of my life.
For a while I thought a mixture of "I'm just being touchy" or "Maybe they're right", but it's starting to get ridiculous and I can't really sustain that any more. It's really wearing me down, making me feel useless. I worry that if it goes on then they'll start thinking I'm neglecting him. I wonder if it's the way I dress, or my attitude, or something I once said.
So here's my question, is there a way that I can kind of politely and subtly change this? Is there some attitude or strategy to kind of indicate to them that I might not be a complete waste of space when it comes to either being a parent or worth communicating with? Something I can do to seem worth it? (Assuming that's the case and they're not just right).