Shaving or using products such as nair or chemicals?

Coming from a 17 year old girl, almost everyone I know shaves their legs. It doesn't grow back thicker or pricklier or any other "er" for that matter. That's a myth. Just get a good razor and you're all set. I use shaving cream when I have it, but you can even just use soap in the shower. Apply body lotion to your legs when you're finished and they will be soft and smooth :)