were going to park at kinser and take a hauncho to the 10000 eisa dancers
I don't understand what that has to do with not using a car seat. If you don't feel like carrying the car seat around with you, don't go or change your plans.
If you are in a taxi on base YES you need a car seat. Off base, no... it's not a law. BUT I would hope that you would use one... for safety reasons. Not to mention the taxi drivers aren't exactly..."safe"... drivers.