Where are you planning on going to school at? I'm a Tri Sigma at Cameron University, which is a small school in Lawton. You don't have anything to worry about with pledging at age 20....That's still young! We've had girls who were 25 and 26 and pledged. I've been in 4 years and it's definitly been great for me!
Shannon
~Sigma Sigma Sigma~
Zeta Beta Chapter
www.angelfire.com/ok3/sigmasigmasigma