While I hate to post in this train wreak of a thread, you obviously have no bloody clue what you are talking about. I have known dozens of "men" that enlisted in the military after college or after working in various career fields all the way up to their 40's. There were thousands that enlisted after 9/11 that had secure incomes and professions they walked away from temporarily to do one thing---to serve their country.
The same thing happened when war was declared in 1941...I don't think those folks or the modern version of them would give much credence to your blather.
You can enlist even in your 40s?