Form follows function!

We subconsciously like a form because the nature taught us it's functional. The teeth are a masticatory tool first! And they always were. Through our evolution teeth have always adapted to our food, not to our esthetical preferences or to our language. I read the other day in one research paper that neanderthals had anterior teeth in an edge to edge position, due to bigger occlusal loads. It was discovered that their languages didn't have phonems "f" and "v" that require close contact with labii inferior.

Our esthetics of teeth have also adapted majorly through history and they will continue adapting. In a couple of centuries we probably won't mind missing upper lateral incisors because the majority of population won't have them. We also probably won't mind crooked teeth because the majority of due to the soft food we consume.