People don't want to do it all the time. Sometimes they do, sometimes they don't.
Yet they're supposed to want to do it all the time or there's something wrong with them.
But what's really wrong is that they're meant to claim to want to do it all the time and feel as though they mean the feeling even though they're not having it.
Sure. Some people do want to do it all the time, and we have places for them with cots, nutritious energy snacks, showering facilities, and plenty of filtered water.
Most people, though, would forgo that haven and just be left alone for a while simply not wanting to do it.