I had a good friend who received an appointment, after spending 13 months in country as a NCO, to a short OCS course and was promoted to 2nd Lt. He was very excited about it until he found out they needed another warm body to lead patrols. He lasted six months over there. I talked to his widow a few months ago. Their only son is now in his early 50's. His Dad never got to see him.
I went to Vietnam as an 18-year old Private First Class, when I left I was a 19-year old Sergeant responsible for a dozen others. Went back to Vietnam and returned as a 20-year old Sergeant with two combat tours, Combat Infantryman Badge and Purple Heart medal along with several other decorations. Still too young to vote or step up to the bar for a beer in most states.
My mother insisted on taking me, in uniform, to the VFW post where she was an auxiliary member. Vietnam vets were not allowed to join because we hadn't been in a "real war".
Around military bases many apartment complexes and property managers refused to rent to military personnel. Many restaurants and clubs had signs posted, usually some version of "NO DOGS. NO SOLDIERS". Popular TV shows and movies depicted Vietnam veterans as drug addicted psychotic killers. Wearing the uniform off-post frequently drew insults or ridicule.
Many employers refused to hire Vietnam veterans until Congress passed the Veterans Reemployment Act providing tax credits for doing so.
Many of us learned it was best to not mention the fact we were veterans at social gatherings or nice parties.
VA medical care was a sorry joke. Go to the VA clinic with an appointment (which takes months to obtain), wait half a day to find out they couldn't get to you so come back next week, then show up a week later to find out you had missed your last appointment so you had been dropped from enrollment. Over a decade after coming home I needed minor out-patient surgery to remove a bit of shrapnel from my knee. Show up at the VA hospital, wait for 4 hours, then I was introduced to my surgeon AND HIS INTERPRETER (he spoke no English). Learned that proper licensing or graduation from accredited US medical schools were not required to work in the VA system (literally, a doctor could be under suspension or revocation by state authorities and still hold a position with VA).
Thankfully, today the VA has changed and now provides excellent (although limited) medical care with good staffing. Still a bureaucracy, but not unlike most modern American hospitals or clinics.
Enough ranting for today.