Do you want your child to be safe? I would...
of course you do, you want your kid safe, right? if you plan on renting a car there, call ahead and they will reserve you one.Taxi's are horrible in Puerto Vallarta, over priced. cross the bridge and get one at 1/2 the price.(from the airport)
yes, the laws in mexico might not require it...but last time i looked, the cars were the same and the drivers were a little worse than we have here in the states.