Currently 22, if I get into grad school I will enter at age 23. Graduated three years ago at the age of 19 (elementary+HS is only 10 years in my country, and I'm one year younger than the normal people in my batch- long story), realized that I wanted to go to grad school in my junior and senior year in college, but I knew there was no way that I was doing it straight out of college. First, my grades are not strong at all. Second, I couldn't imagine being a TA for people who would be my age or maybe even older than me! Third and most importantly, I knew that I wanted to deepen my learning but I didn't know how and where. In my past three years of work, I have been fortunate to get jobs that allowed me to travel all over my country and ones that taught me new skills. Like many people who posted here, I gained a lot of perspective on things, was able to pin down the subject that I wanted to do research on. Not to mention I went on a 2-week international trip with my college friends, very budget and basic but so much fun. I don't regret waiting at all.