They can be educated about what decisions each party made, is making and is promising to make.
Then based upon that, weigh the pros and cons, and pick whatever they want to live with.
There are 2 terminal problems with that:
You cant actually live how you want to in most cases because there are other people that should vote in their own favor.
Nobody has time and willpower after a stressfull work day to indulge into politics, because it is not apart of our culture these days, to fully care about that which controls our lives: politics, politicians and mafia.
I have a solution to this, but you probably dont want to hear it.