Season One of Central Perk

I can't get over the fact that they looked early 30s. I mean at least Monica Chandler and Ross and Phoebe are early 30s already. Oh no no no. And Joey and Rachel are both immature in age and the way they look so those are the only believable ones for me to think could be maybe late 20s. Well when we get to season five or six where they have a specific episode where Joey is freaking out that everyone is turning 30 you're gonna it's really gonna confuse you. Just to give you some sort of idea of it you know Ross is the oldest Ross is right as Monica's older brother, then Monica is the same age as Rachel because they