Family shame

I usually don't air my dirty linen in public, but I have to tell someone. My 19-year old son just confessed to me that he finds my CZ-52 to be more accurate than my 1942 byf Black Widow, and even worse, that he actually prefers shooting the Czech pistol over the Luger! Is there anything I can do to make him see the light, or do I just resign myself to the fact that he must choose his own destiny, no matter how clearly erroneous it is?