well if a major conflict came up right now, say a land war in Iran with the US...I could see the need for a draft, we don't have the manpower for it . And the Military does not want it ...now...but when they don't have the troops to fight a war, they are not going to turn away from the option.
that said, if it was a war worth fighting, I would join before I had to worry about drafted most likely ( assuming I am able to due to age or what ever since we don't know when it would be) but I feel no problem trying to get out of a war of no meaning like Vietnam was...Fact is Vietnam fell and, yet America was never in danger from the evil commies of N. Vietnam even after they won. Iraq was stupid idea, with worse planning....but at least there was some real reason some could worry about him and Iraqs effect on US Security.