why invent a toilet? ground holes were perfect for sustainability and for peeing just pee in the sink, u gotta wash ur hands after anyway. so u save alot of water. humans very dumb creature. i swear.
small amounts of pee will get everywhere near the sink, enjoy brushing your teeth with piss afterwards
and the sink will stink unless you clean it everytime afterwards, which would be a big waste of time compared to simply peeing like a civilized human being