If the voting experience is sufficiently onerous, people will still not vote and pay the penalty (or go to jail). Then it’ll be just another tax/burdon on people in disadvantaged areas.
Looks like Western Australia charges $50 for repeated failure to vote. $50 Australian ($31 USD) to not take off work to stand in line for 3 hours getting sunburnt? That’s less than minimum wage in my state. It would make financial sense to just go to work and pay the penalty, ignoring the less tangible potential long-term benefit of effecting change in favor of paying rent.