What constitutes being "old school" in the military?

1968 Knew a MGYSGT who walked into the HQ and announced he wanted to retire as soon as possible. When the Commander asked what the rush was since he still had a few years on his enlistment he replied. I served during the banana wars in the mid-30s. The PX no longer carries the ribbon. Time for me to go

Forget the yellow outfit
If your old school you wore fatiques and undershirt !

Knowing what a prick-77 is, wearing a battery against your body to keep it warm on patrols on the "Z" in Korea, on patrol and sending some "smuck" up to look around. when in formation told to "at ease" and the platoon sgt. says "smokem if you got'em

If you have to ask, you aren’t and never will be. Lol

Doing PT at AIT in '80 wearing green cotton sateen uniforms and boots. And just after you showered.
Eating C-rats.
Reporting to the training unit CO and 1st Sergeant on payday and telling them how much of your pay you sent home.
107mm recoiless rifles were our standard anti-armor weapon prior to the TOW.
M-16 A-1 rifle.
Singing cadences you'd be given NJP and extra military duty for these days.
Jeeps.

PT uniform was unbloused boots and no fatigue shirt. To this day, I still check my gig line - at work, wearing a suit and tie!

OD fatigues, polyester. C rats, kiwi spitshine boots. Doing PT in the same fatigues and combat boots. Smoking in the mess hall at the table after a meal. The mess hall was segregated back then, i.e.; enlisted section, NCO section, and officer section. This was my old school.

Running PT in T-Shirt and Fatigue Pants and Boots, that's old school!

Normal 5 1/2 day work week (that always seemed to morph into a 6 day work week ) Saturdays were made for inspections of every kind. !st Sgt getting pissed at you because you had made the man on guard mount and had a Saturday off and he could,nt put you on KP. PT Uniform was take your shirt off . M38 and M38a1 jeeps M37 3/4 tons M135 ,M211 and M35 2 1/2 ton trucks . Last but not least then as now the best friends and people you will ever meet.

When you and your unit actually trained and had fun doing it. When you were treated like a Soldier and to took honor in being one. When you're in a 360 full MOPP, look left and see someone pass out face first into the mud because drinking tubes were for the weak. When NCOPD included beer and 1SGs choice was Piels. When you would get pissed if your boot shine cracked because you just spent hours getting them to look like glass. When you use to melt pennies on the old pot belly tent heater. When everyone knew DNC. When you use to glue the inside seam of your starched BDUs. When you walked around with a permanent dirt stain in your APFU sweat pants and shorts. When Soldiers use to get haircuts before first formation by an NCO because they weren't in reg. When awards came when deserved.