I agree with
Dr Delgado -- but with a stipulation.
All men want their gyno gone and with minimal scars. Many guys can get nice results with minimal scar surgery because their skin has a certain amount of elasticity, which will allow the skin to self-tighten after the excess tissues within have been removed.
Skin elasticity, however, decreases with age, cumulative exposure to the sun, smoking, etc. It is certain that the skin of a 65 year old man has lost a decent amount of elasticity. Therefore, depending on the extent of the gyno, it is possible that minimal scar surgery can be done but some residual skin laxity may result, which might require a second stage to tighten any remaining lax skin six months or more after surgery.
Would therefore recommend a consultation with an expert in gyne surgery, who can assess what your true results may be after surgery.
Good luck!
Dr Jacobs