First of all, age doesn't matter. If you're experienced and have the knowlege and desire, you can get anything you want out of life. I am 24 and an FO at Mesaba. I got hired at 23 and fly a 4 engined jet!! I attribute my success to determination and the will to get where I am. I'm not kidding, everyday I fly I get a comment on my age and how young I look. It doesn't really matter though, I am fully qualified. You have to understand that in the US time and senority matters. You can't just join an abinitio program like Luftansa, Sabena or whatever and get hired by a US carrier. Infact, that would be seen as a negative thing, paying for the training that an airline gives you. A degree does matter and it really doesn't matter what you got it in. I went to Embry-Riddle and am proud to be an alum. There are many opportunities that ERAU provides that no other school does. It is the leader in its field, if that is the route you want to take. I do believe that with the universities reputation that is out there, that is a bonus, but definitely not necessary. Also, there are plenty of people who put themselves through Riddle that didn't come from rich families, so the ignorant and unfounded comments from Latechpilot only makes him look like a whiney kid.
Bottom line, no matter where you went to school, getting a job at an airline is based off time, experience and how you act as a human being. Not much more than that. By the way, an ATP certificate is not required to fly for an airline. It is required to be captain, but to get hired you just need a commercial certificate.