It's a game designed around math, combat, and dungeon crawling, not around roleplaying.

The objective isn't to have fun roleplaying, but to roll the right numbers to maximise damage to the enemy. Any real fun comes from ignoring the rules and homebrewing.

The car might have gotten a few coats of paint over the years and maybe more ergonomic seats, but it's still the same old chassis and engine underneath.

There are many games built around the concept of getting the players to have fun roleplaying, but DND has never been one of them, and if it ever became one it'd no longer be DND.