In the event of conflict would you step forward or wait to be pulled in?

I want to say step up, I can recall all my mil procedures better now than when I was training on them but there would be hundreds of thousands of people who would actively avoid drafting all of whom are much younger than me and many of whom have barely done a day's work in their lives but would expect people to defend their idle ways of life.
(Yes I am a Socialist and no lazy people aren't automatically Socialist). Why should I step up to defend lazy bastards some of whom would think nothing of mugging me if they felt I was a soft touch?