your stats are relevant and you have to use the mechanics to affect the entire rest of the game, i don't see why social situations are so special that they get to be exempt from that, we encounter a social situation and our entire party has dumped charisma, but don't worry, i, the player, have the gift of gab and can talk my way out of the situation. i think not, maybe when my STR 7 fighter can insta-kill that stone giant by describing how cool they swing their sword and cut their throat without an attack roll.
i've heard the justification to allow it because 'it's possible to perform [the social interactions] at the table' but that doesn't work for me, it's 'possible' for me to just reach over and grab the money pile from the bank in monopoly rather than by making it all around the board and passing GO for a measly 200, that doesn't mean i should just do that.