Back in 1960 my parents were hopeless. My mother was going in and out of psychosis and was impossible to live with. She blamed me somehow for developing these breasts to torment her. In general she was hot and cold running body shame all the time. And there was not anything at all that could or would be done about it in 1960. The probability of a teen aged boy with D cups (or any other size for that matter) having a double mastectomy, major surgery as one of the docs here put it, realistically was about zero. And it would have been a crude chop job anyway. They were not very good at satisfactory cosmetic results. We have a female friend who had breast reduction surgery about 1970 and it was a total ugly botch-up, misshapen and scarred, sort of crude frankenstein style with big ugly seams and scars running every which direction. She became so unhappy with her messed up breasts that she had no relationships at all for the next 40+ years. She will not expose her breasts to be seen under any circumstances by anybody. She is responding very much like many guys with breasts.
Those of you with helpful and understanding parents are very fortunate. That there is the possibility of an aesthetic solution for some is a change that occurred during the decades I paid it no attention to it all. What would be even better is a culture that doesn't have essentially 100% of people ashamed of their bodies for merely existing. The way I feel now, which started changing in college, was that after decades of life threatening and life destroying health problems, getting broken up in a car wreck, that I don't need to have the trauma of major surgery and more scars and less functioning nervous system yet again. Every physical trauma of that magnitude I have had took years to stop having echos of problems and heal completely. When I get nerves damaged they tend to go the RSD (Complex Regional Pain syndrome now called) direction with years to decades of neurological pain from even minor injuries. Now at 64 I am the healthiest I have ever been but even so my nervous system continues to deteriorate from previous damage. Consider carefully. As I get older all the old injuries (including surgical) get painful all over again. I can feel the whole catalog of injuries I spent a lifetime accumulating. Personally I thing that dealing with this "normal" (typical, not unusual, common) breast growth a majority of men have at some time in their life in our minds, where the problem originates, is a preferable answer if it is doable. The whole problem literally disappears if there is no cultural standard of general body shame. Ask it the other way around. What percentage of people that you know don't buy into the whole cultural body shame standard? Am I the only such person you have even talked to?