Sewage system in Naruto world

Naruto is one of the best animes I’ve watched. I loved the world building of Naruto -the 5 villages and the occupation of people living therein etc.

There’s this one thing that seems missing and this discussion may seem dumb. 😐

So I was wondering: where do the ninjas poop? Do they have toilets in Naruto world?

I have watched some episodes of Boruto and didn’t like it. But since Boruto verse has train, it must have toilets too and a sewage system.

In Naruto, no toilet is ever shown. So how did they take dump? On the streets?