Everyone needs to put the toilet seat down. Flushing with the lid up is committing biological warfare on yourself and everything else in the bathroom.

close the lid.

now everybody has to adjust the toilet before using it.

Me, an alpha male sitting down to pee and closing the lid afterwards: what are you talking about you degenerates

1. Men, women, and everyone in between and between all sit at some point when using the toilet.
2. It's unsanitary to flush with the lid up.

If you aren't putting not just the seat but also the lid down, you're just spraying your house with piss and shit particles.

Close the lid before flushing, you uncouth animals

i sit down because I'm an adult and clean my own toilet. Standing is gross.

We both put the lid down after we're done

For anyone that thinks about shit plumes: Iirc last time I heard it mentioned and looked at the study, it was based on public restrooms with high pressure flushing mechanisms, not the slow flush tank dump I think most people have at home. If it sounds loud and splashy, maybe a shit plume, if it's a sploosh swirl blub blub, prolly not a shit plume. Pouring water on shit doesn't really aerosolize it, power washing it does.

My wife does this, no lie. Took me awhile to figure out why the lid was always up after she moved in.

I pee with the toilet seat down for extra difficulty

Close the fucking toilet you heathens. All of you.

I think women should start pissing standing so my fellow fragile penis owner, who think standing while pissing is the only option, learn how filthy a toilet gets if you don't put your parts in the bowl.

Close the lid so the cat doesn't drink/fall in?

If it's a problem from there, it's not a battle of "who needs the seat in what configuration," it's a battle of "who deserves to touch the icky parts and who deserves the icky parts touched for them" at which point we're through.

I've started reflexively putting the seat and lid down because otherwise my toddler will put whatever he can in the toilet.

#1 step is to get a slow closing lid and seat. That will solve all arguments

The difference is that if I forget to put the toilet seat down, she can fall in.

Vs if she forgets to put the seat up, I just pee all over the toilet seat.

I used to have to tell my female friend to put the lid down when she stayed over. My cat loves drinking from the toilet so if the lids up when I open the door and I don't catch him in time he'll just dunk his head in it.

You should really put it down when you flush too which minimises the amount of fecal or urine particles that get into the air.

It's best to have an agreed default in a household, so there's no surprises during a half awake trip or an emergency. Lid down is the best hygienically, but seat down is better than all up as it's a shared need for everyone sometimes.

Women who do lid up for the men have done that out of a history of men in their lives thinking their aim is perfect.