I am in the middle of this. Graduated from college and wanted to go to medical school, but got a job right out and was enjoying having money. Worked for about 5 years until I was 28, now I am full time at Physician Assistant school.
Kind of glad I waited. Have some money saved up from my previous job and its nice being older. I went back for the job satisfaction, as I will probably be making less at my new job for some time, plus lost wages, then my old job.