Then provide evidence. Instead we get speculation based on hearsay.
I have never raised the bone spur issue. A quick check with AI tells me it is clouded. The case that Trump actually had bone spurs and he used them to avoid the draft can be made either way, neither of which would likely hold up under the standards used in a court of law.
I do find it interesting and factually verifiable that as a student at Fordham University and later the University of Pennsylvania, Trump received four 2-S classifications that kept him out of the draft. That was not uncommon in those days. I am personally acquainted with several men who did the same thing.
It is also interesting and factually verifiable that Trump was a multi-sport athlete in high school and college. The sudden, disqualifying foot ailment seems unlikely to some.
I was of a different mind back then. I enlisted and was in US Army basic training a month after I graduated high school. Every now and then I discuss our Viet Nam years and actions with my Viet Nam-era peers. To this day, those who evaded the draft with proactive action view it as courageous and the right thing to do. And we all know some who went to Viet Nam and came back in a casket.
Regarding Trump's cowardice, I don't need bone spurs to make that case.
See this.