do you think people on welfare shouldnt vote?

Sure they should. Why not? Because they're not contributing taxes? In most systems they still are, through sales tax, but still. What if a person's total income tax contribution was just 1 cent? Would that be the magic barrier between voter and non-voter? In the US that would essentially constitute a poll tax, which is illegal. Additionally, even if it weren't, who would decide what the tax threshold for voting is if it's not just 1 cent? What if it were $500, or $8000, or $50000? What if only the rich could vote? Slippery slope.