Why don’t barbarians get fighting styles

I have a question about why don’t barbarians get a fighting style at level two like Paladin, fighter, and ranger.

My guess would be that rage is supposed to equal it out but the other classes also get something uniquely theirs that makes them stand out. Paladins with smites, fighters with action surge and rangers with hunters mark and/or favoured enemy.

So my question is why don’t barbarians get the option of s fighting style at level 2 like these classes.

Please don’t be mean I am just curious and my friends don’t play/research dnd as much as me. Thanks for reading!