I'm a girl and I've never dated any guys that were younger than me, mostly because they can be so immature. But I guess if the guy is younger than me, but is at the same maturity level as I am, I'll be ok with dating him. I think a person's maturity level is not measured by age, but by the experience they've had in life. I've dated guys who were 4 years older than me who were not more mature than a 5 year old. But I also don't want to be like a sugar mommy...so preferably, the guy would be out of school & has a job of his own.
