[PhoenixAzul]

I don't know, I'm 19 and I'm what most people would call a "puritan". Never drank, smoked, had sex and am actually part of a youth culture movement called Straightedge (it's related to punk rock and hardcore if you're curious). But it pretty much means that I've made a vow to never do any of the above (sex within marriage/monogamous relationship although that's up to personal preference...drugs, alcohol, smokes are the main three). But at any rate, I agree with the assesment of 19 being the "cut loose" age. By 21 you're just bored by it because you burned yourself out on partying when you were younger.