Too old to join a Sorority?

[1908Revelations]

I'm at UAB.
Several of my line sisters are 18 or barely 19, I am almost 23. I don't have any issues with my LS's, but sometimes they want me to go to parties with them (the 18 to get in), but they understand that if I go out to a club (which is extremely rare) I prefer the 21 and up crowd. That is the only thing that is noticiable...the few of us who are 22 and another is 23 are almost never at parties. I think that the maturity thing is not an issue for me since there are other seniors on my line.