The only thing that matters is whether or not you think they should be. DO you feel like shaving them? If not then don't shave them. Even if other people did see them it's none of their business if you shave your legs or not. It's a personal choice and nothing more.
I don't ever shave my legs or armpits. I'm always surprised when people find that gross. Not shaving is pretty normal here, especially at school. But so is looking like you've been camping for the last three months.
Those people are just idiots. I wouldn't give a crap about what they think. It's just hair. I'm 23, almost 24, and I don't shave in the winter. I wear pants all winter long, so no one's going to see. It's a waste of time. Besides, it helps you stay a tad warmer.