I believe you have a good addition to the platform my friend. No taxes for the five years after your National Service. Helps get you started. With the greater number of People participating in their .gov, it will cost less to run it.
There is great benefit in some community service. I think something that helped instill a sense of real ownership rather than just entitlement would be great. That said, I don't expect those folks are going to work for free. So not sure the costs go down much.
My thought wasn't to exempt anyone from taxes they would otherwise owe. It was allow them to vote for some period of time during which they otherwise would not have been eligible to do so for lack of paying taxes (presumable for lack of income on which taxes were due).
I believe one of our major problems is that the electorate has realized they can vote themselves largess from the public treasury without having to contribute anything to the treasury. To a large extend voting is really helping to decide how much and how to spend money. Even when it comes to seeming non-fiscal matters like criminal law, there is an element of "for which behavior are we willing to spend money to investigate, prosecute, and punish?"
It makes no sense that we should be allowing those who do not contribute to the upkeep of the society to have an equal voice in determining how that society is run. Of course, it also makes no sense to me that we should allow those who can't find their own nation on an unlabeled globe, should get equal voice in helping to set foreign policy.
But we have constitutional amendment against poll taxes, and a very nasty history of literacy tests being used for blatant racial discrimination. And just as governments tend not to voluntarily surrender power, neither do the masses. So probably nothing to be done except to try to educate the masses a little better. If only the schools were not so bad...
Charles