comparing getting baptized to getting a driver's license --- let's see:
-no one gets pressured by parents to get driver's license. if anything, quite the opposite. no one wants sky-high insurance rates
-one does not need parental permission to get baptized. if both parents are worldly, Johnny Teenager can get baptized on his own and even against his parents' wishes
-parents must give permission for driver's license and until kid is legal adult, parents can revoke permission
-everyone must get learner's permit, go to driving school, and pass driving test to get DL.
-minor drivers get provisional DL, a license with certain restrictions
-once you're baptized, there is no trial period
-if you don't wanna drive anymore, you don't. you are not ostracized by society for not renewing your DL
-if you don't wanna be JW anymore, kiss your social life and sanity goodbye
-there are driving manuals which clearly state the laws of your locale (For example, did you know that by having a DL, you cannot refuse to take a sobriety test) and any penalties. You can find these rules online on your state's website.
I'm sure there more.