My other thing, though, is that I think it's fully possible to play a doltish character without actually making fun of real people. It's the difference between playing a character who is gullible, makes dumb choices, or misunderstands things and does things like
this
View attachment 147313
and playing a character who goes
out of their way to do stupid (and often game-disruptive) things like saying "Hur dur, I'm so dumb I think I'll pull this lever that says 'pull this lever to summon a a hoard of demons'."