The child restraint requirements imposed by this section do not apply to a chauffeur-driven taxi, limousine, sedan, van, bus, motor coach, or other passenger vehicle if the
operator and the motor vehicle are hired and used for the transportation of persons for compensation. It is the obligation and responsibility of the parent, guardian, or other person responsible for a child’s welfare as defined in s.
39.01 to comply with the requirements of this section.
its right there.
You can also look at the legislative history and the legislative intent. If you do, you will see that the last section was added separately from the other exemptions and with additional language that the other sections do not have. So you have to ask yourself, why was that. If the intent was to simply exempt operators and cars for hire from the law, why not add it to the list of exemptions? Why not simply remove the word gratuitously from the section above that discusses children in cars driven by people who are not their relatives or in case of medical emergency. Why, because the intent was different than the above sections. The intent wasn't to exempt taxis or other cars for hire and their drivers (although I don't believe motor vehicles have been deemed legal persons yet so you can't really impart blame on a car, you would do it to the driver of the car so you can't separate them) but to shift that blame to the parents/guardian as defined by 39.01.