Peeing while standing I do only at urinals. At home I sit. Of course I would also pee while standing, but the additional cleaning need is just not worth it.
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Its just cleaner to sit, thats it, I am lazy to clean the bathroom every two days
I guess I spent too many years on boats - I always sit! You never know when a big wave is going to mess up your aim if you're standing (of course, in the shower that doesn't matter, does it?!). Now that I am old, I sit with good back posture - no elbows-on-knees. The prostate seems to prefer I'm upright. Well, you asked!
Even if you think you have the perfect aim, the ceramic can betray you and hit you in the knees with a recoil. Sittin is safer.
I'd love to stand, but she-pees don't seem worth the effort
I owe standing up. Also in the shower.
Peeing in the sink is not represented here...
Diaper gang in da house!