I'm going to quietly add my .02 here.
To the OP: I get the feeling that all you are looking for is someone to validate what you are trying to do and completely disregarding those who are telling you there is a very real possibility that 18-22 single college kids may not think that a 35-yr old married mother would be a good fit with the chapter. I can assure you they are not posting that to put you down, or make you feel bad about yourself, or anything, they just want to prepare you for the reality that there is a VERY good chance you will not get a bid instead of telling you what you seem to want to hear and making you get your hopes up for something that may not happen. Hell, they even gave you some alternatives to consider (service GLOs, professional GLOs, or even groups like Beta Sigma Phi) that all offer sisterhood in addition to their service, etc.
DMBabyZTA - you need to simmer down sweetie. And just a FYI, in teh interwebz, TEXT IN CAPS LOCK = YELLING. Please refer to "Common characteristics" here:
http://en.wikipedia.org/wiki/Netiquette