Horrors!! I can see it now - along with "security" locks, every holster, concealed or not, shall require appropriately certified 5 MPH bumpers.
Insurance will become available at some ridiculous add-on-to-your-umbrella-policy premium.
Doctors will report all head/gun collision statistics.
Antis will pick up on this and demand misdemeanor/felony penalties for CHOP (Child's Head On Pistola) events.
Pro-gunners will ask for personal carry anti-collision electronic systems and cry about insurance rates.
Holster makers will cave in and provide 10 MPH bumpers for "good faith" and demand federal legislation to protect them from trivial law suits - bill(s) fail.
Politicos will appease the "for the children" crowd with "bumper" legislation, tying in some nefarious way to the Patriot Act.
Leos will stop important work, ask for and be provided holster-sensing devices and turn to spotting unbumpered holsters. Additionally, since the law givers neglect the details, Leos, now able to easily spot printing, are popping misdemeanors as required.
Mothers, now easily identifying bulging bumpers, warn their chidren about "baaaad men with GUNS", much like "I'll give you to that policeman if you don't obey me" of yesteryear.
Holster designers will work feverishly experimenting with "slim, lite, space-age" materials to reduce bumper print effect.
////
I suppose there could more effects: less MPG due to extra weight; extra-wide car/truck seats for "carry" groups off to higher education; garments made-to-order in attempt to negate bumper bulge. Even more.
Wouldn't doubt it a bit.
Hope there are no problems, mwithers72.
-Andy