Human babies need a buff, they're functionally useless for far too long. Other mammals can stand immediately.
Way too many incompatible preference traits. Cheese being delicious but also requiring to enslave another being for manufacturing, with a 50/50 chance it makes your asshole explode. Way too chaotic.
I'm not talking about exploiting them (and even if we could the value would be infinitesimally small). From a gameplay perspective it's just boring. Everything is out of your control. Even if you get a shit start you can't reroll, you have to deal with it for literally YEARS.