That is why you wash your food before eating it same as you do with legumes and rice (that likely also have had pesticide on them).
But peanuts and white rice, the most common ones have already been 'peeled'
Unfortunately a lot leaks in. Grapeskins are particularly porous for instance. So are most of the dirty dozen iirc.
Skins are healthy, but only if organic and/or clean fifteen.
In South Korea (where I used to live for a while) it's quite common to wash fruit with soapy water at home before eating them.