what "thing" can you never do?

(spoiler tag in case discussion reaches into lore or gameplay examples, i waffle a lot)

what "thing" doth thou chooseth to ignore? (tried my best to sound like withers)

for me it's a certain class and, separately, a race. i've tried many a times to theory craft a background/lore reason but for reasons i'll get into, it never seems to work out.

race: drow. as a dizzt enjoyer as much as the next person, this is exactly why i can't play drow. they're too personable for an historically neutral/chaotic evil society. if i ever do play an evil run i tend to pick mephistopheles tiefling as its got the general look of a motherfucker who doesn't give a shit, but it has the weight of them being literally from hell. children of lolth do have a lot of flavor with their evil dialogue and generally baddie-lookin face presets, but i've read too many wonder stories of drizzt for them to be the ones to dominate the brain. just a randomly weird, and not very intellectual reason i don't play drow lol

class: wizard. i always have my boy gale with the team, he's the one constant in all my playthroughs that never feels boring to me. his good and bad outcomes are cool/fun/engaging, and idk i'm just a sucker for somebody who knows what's what. the reason i can't play wizard is simply because gale, from a gameplay standpoint, is my wizard and i never have more than one spellcaster. the other reason is wizard to me is the golden retriever class, lore-wise i can't stand mystra and i tend to head canon more free-spirited tavs that don't hold much belief in the gods and their fickle natures (jokes on you withers my durge was always destined for the grey wastes).