Ah right, that reminds me of something I saw in a previous topic:
This! This is another thing I'm kinda tired of seeing. I feel like this is related to the 'unrealistic found family' thing: everyone overcames their flaws and get along with each other and live happily ever after. And if they are still flawed, they conveniently happen to be flawed in a way that makes them mutually compatible as their own 'messed up little family'.
I want to see a found family that, through the process of bonding, maybe some characters find themselves incompatible with each other, and it's not really portrayed as a 'flaw', they just have mutually incompatible needs and that's just kind of how things are and not everyone can get along.
I want to see characters agree to disagree on actually contentious topics.
I want to see other character struggle with how to deal with the conflict between two incompatible parties in their midst, which is not as simple as talking things through or 'fixing' either of them or kicking one of them out because the narrative isn't painting either of them as 'flawed' or 'evil'. I want the characters to feel like taking sides; to have opinions on who's right or who's wrong, but nevertheless can't completely denounce the party they think is 'wrong', because they're 'family', and they don't want to give up on them.
I want to see times where the differences really are just too great and it's not healthy for everyone to stick together. If 5 characters are introduced as the main cast, it feels unrealistic for all 5 of them to still be sticking together harmoniously by the end because it's a hell of a coincidence for all 5 of those people to be mutually compatible. Give me a 2+3 or a 4+1 or something; let the splintered groups go out and find new people they're actually compatible with. Human compatibility is messy and chaotic; show that!
I want to see the bonds being actually tested; not by outside forces or temporary flaws the characters can overcome but by the inevitable conflicts that arise from who they are fundamentally as people. Conflicts that can't be eliminated without the characters ceasing to be themselves. That's the kind of stuff that sells me on a found family dynamic ^_^