You should absolutely wash everything you intend to put in your body. Not only are fruits and vegetables covered with things like pesticides, even when they are totally organic, they were probably fertilized with nitrates which are bad to ingest (and organic pesticides are a thing and not good for humans). And even if that isn’t the case, they grow those things outside like on the ground. There is a reasonable chance at least one animal has pooped or peed on them.