A commoner with Endurance I could understand, and maybe cross-classed skills. Heck, maybe even Profession (Beggar) would be fine. But this isn't about simulation, it's about verisimilitude. One of my favorite things about 3.x/PF is in fact the fact the world makes sense when you put...
The caliban gains Endurance as a bonus feat. Unbroken: The caliban gains a +2 racial bonus to saves against fear and despair. Languages: Calibans begin play speaking the dominant language of their native domain. See below for details. Special: At the GM's discretion, calibans may select ...
Half-orcs with this trait gain Endurance as a bonus feat. This racial trait replaces the intimidating trait.Skilled: Second- and third-generation half-orcs often favor their human heritage more than their orc heritage. Half-orcs with this trait gain 1 additional skill rank per level. This ...