I was 2 years out of college, had a job, and was supporting myself by living with roommates - but I was not yet working at a job that would sustain me forever. My dh, who I didn't know yet, graduated from college shortly after turning 23. He took an extra year due to a 9 month long internship.
I think young people now think they have to "have it all," as in buying homes, affording everything they want, etc. right away and they don't!