On most new cars these days, the customer can opt to have the switch
installed. However, it poses an insurance/liability problem, because in
the event of an accident and you have the airbag deactivated, the
manufacturer is no longer responsible for damages resulting from the
airbag not deploying. However, should one choose to have this device
installed, one should know that there is more paperwork to follow it.
Experts all agree the best place for any child under 12 and under 100
pounds is in the rear seat, just to avoid any possible incidents. And, to
my knowledge, thrid party companies will NOT install this device after
you've driven it off the lot. Again, liability issues.