For example, with the parcel tax, teenagers who attend school and feel the effects of it not passing know full well what will happen. To some people, it would be just mean more taxes, but teenagers know that it is more than that.I can surely say that not everyone who attends this school knows what is happening. This can be a combination of students not caring and others who just don't know what a parcel tax is. Not all adults are stupid. People such as the principal and teachers understand what the tax is going to mean too. Other people who don't attend this school probably don't know about it because they've never heard of it before.
There is a such thing as a wrong vote. You can rate a president using their popularity and what they've done for the country economically, diplomatically, etc. If an individual voted for the candidate who was very unpopular and put the country into recession as well as plunge the country into wars then that person would've made a wrong vote. Let's use Bush as an example. His popularity is lets say not so good as seen in this CBS article. What has he done for our country? He made the American dollar weaker and did a bunch of other bad stuff that I will not go into detail with.
I agree with her when she says that parents, teachers, etc. will have much influence on teens. Yes, they are entitled to their opinions and they make the final decision, but influence is still influence. It will always have weight on someone's decision and sometimes that weight may be heavy enough to make the decision for them. For example, there are teens that smoke. They could have been influenced by friends saying how cool it is to smoke or they could have watched the commercials and thought it would be a good idea to smoke. I would not count out influence as an important factor in voting.