the bruce cant cook thing is so annoying bc like bruce is overprepared and probs learned basic survival skills like cooking in the off chance that hes in a situation without access to alfred/ anyone else who can cook, man can probs put together a edible, nutritional meal, whether he can be bothered to learn to make food taste good rather than just edible is the real question
this is my point exactly. but i personally believe the 'bruce cant cook' thing also points to a wider issue in fanon where flaws are disregarded and replaced by meaningless things like '[character] can't cook' or '[character] enjoys [insert food or other banal thing] very much'.
in a fic where bruce can't cook, or tim enjoys coffee more than life itself, or dick will fight anyone over his cereal, flaws like bruce's struggle with expressing himself emotionally, his not-so-good relationship with his kids, him pushing the people he loves away? all of these things are just not there. everything is perfect- except, oh yeah bruce can't cook.
it turns this group of people, this family, that is inherently dysfunctional and reduces them to very little and then goes 'aahhaha BUT he can't cook' and i despise that bc most people don't even do it intentionally, it's just common in the fandom so people just do it. without realising that it also kind of waters down their work.