I knew a fellow from a strict Jewish family where both his mother and father were strongly anti-gun, and thus refused to allow him to have any toy guns.
Their ban was so strong and uncompromising, that he vowed that once he was an adult he would own some guns. Sure enough, by the time he was in Medical school, he had bought a number of firearms. He ended up becoming an avid Deer hunter, and also got a concealed carry license, since as a psychiatrist he worked with some people who were very disturbed.
So if anything, the efforts of his parents only made him rebel more, and want to have guns all the more. Their strategy completely backfired.