Should Kids Wear Informative Tattoos To School?

When I first saw this product I really wanted to make fun of it - but it just makes so much sense! Safety Tats are temporary tattoos for your kids (or elderly people) that you can write important information on like phone numbers, name, or allergies. Should kids wear informative tattoos to school though? Would it just open them up to more bullying?

I think it is a good idea in many situations. If you take the family out on a vacation if all your kids are wearing a safety tat and one gets lost then whoever finds them will immediately have their phone number (also sounds kind of creepy).

What do you think about Safety Tats?