Why goblins can use bows while base lona can't?

Cuz goblins are male and women are better in the kitchen...

Or rather, prob cuz the goblins learned archery, while it's not trivial for a woman with no fighting experience to learn it.

because goblins unlocked the WeaponExperties skill right after birth, lol

contrary to popular believe, bows require a lot of strenght.