I personally wouldn't date someone that much younger than I, but sexual relationships are a different matter. And to those who are saying "at 19 they are still a baby", it must have been a very long time since you've last been sexually involved with a 19 year old.. I have a 32 year old, a 30 year old, a 27 year old ex, and my bubbly little 19'er, guess who is the most passionate during sex, has the most stamina, seems more experienced, more open minded, and doesn't run from the wood? The 19 year old. Sexually, I see no issue with it and, speaking from experience, trust me, the days are long gone when 18-24 yr old females are still 'innocent babies'. I've been in a college environment consistently and for many reasons over the past 8 years of my life including now and that's basically all I've been dealing with sexually, with an exception here and there (see above). These 'girls' may have half the mind of a young girl but physically and sexually they surpass most women 10 years their senior. Exposure to the internet growing up has been a heckuva drug for that genre..