I'd also add that being relatively young actually can limit your dating pool at times. Some women get really hung up on guys that are young.
For example, I was at a bar last night. I was waiting to get a drink at the bar and two girls pull up and sit in the seats next to me, even though there were plenty of other stools. I took this as an approach invitation. We begin talking, and they start fishing around for my age. It doesn't help that despite being 24, I have a baby face thing going on, and I'm often mistaken for being in high school. Long story short, they're a few years older than me, and as soon as they find out how old I am, I sense the interaction taking a nose dive.
Now mind you, I still had a fun interaction with them, and I knew they were attracted to me. Yet, despite my attempts to disarm their insecurities about age differences, it didn't really change their minds. That's probably the biggest sticking point I've run into as a relatively younger guy coming out of college. When you meet women who are a bit older than you, they tend to shy away, as in women in their later 20s, early 30s.
It's not a big deal, as you're probably going to want to meet women in their early 20s. But meeting slightly older women has been a challenge for me, as they tend to be sensitive about age.