Why does the Army uniform still have these giant cargo pockets? Who uses their cargo pockets, and for what reason?

I used my cargo pockets many a time while on mission. But, aside from the headgear, as mentioned by MSG (Join to see) or specific training environment requirements (canteen in cargo pocket for a few different schools), never EVER had anything in them suckers in garrison.

Edit: Due to dat fingers, I originally erroneously tagged LTC Jason Mackay re:hat in cargo pocket. Updated to properly attribute credit.

The purpose of the cargo pockets was to break down multiple days of MREs in case you had to ditch gear. This is how it was done explained to me. Also the xtra socks.

I use my cargo pockets to place my cover in when I need to keep it on me and still be hands free. I've never liked tucking it in the small of my back. Tried that a few times. Not a fan.

During my 3 deployments, those cargo pockets got used almost everyday. May not see it in garrison, but they do have a purpose.

Field and Line Soldiers know.

The Army Medics used those pockets to carry atropine, needles, pills, band aids, etc. We were NON-combatants and didn't carry weapons because our Medical supply bags weighed up to 70 POUNDS. We could use any thing within reach to defend ourselves & our patients. The DRAFTED CONCIENSUS OBJECTORS in my tent threw rocks. The FEMALE "WACS" had to wear "HOSE" NYLONS" Stockings" in a combat zone. So you think cargo pants are stupid???????

Well as a life long Geunr, I always used them. In the field the right one held ma, protractor and a fine dry marker. The left held my next meal, if I was lucky and extra equipment.

I have often used my cargo pockets.

Warning Sarcasm Intended: Cargo Pockets are functional both in garrison and field environments. The mentality that a uniform should always be pressed is detrimental to the utility of a uniform designed for functionality over appearance. In garrison an "Office Worker" may not have the requirement for function over appearance, but other MOS duties require the functionality. Maybe the solution is Class B for all Office Workers, and OCPs and Coveralls for the rest of the military work force.

Just one person’s opinion. If the ACU (Army Combat Uniform), as well, pressed, you shouldn’t be wearing it. The Army and all the other services have a large selection of uniforms. If you’re an auto mechanic, a grunt going on a 20-mile march, A tank crew member, or any other job where you going to get sweaty, and dirty because that’s part of the job. That’s what the ACU is for. If your job is in an office, standing guard duty, or any of the other many important tasks that don’t require the dirt, the grind, the strategy sweaty part of the job then where one of the other uniforms. That was way it was back in the day and it made sense. There was a time when you couldn’t wear fatigues off base. Then sometime around the beginning of the Gulf War’s they decided everybody should wear ACU.
One of the funniest pictures I ever saw was that general walking along with Pres. Trump, everybody in suits and ties, except for him in his ACU. The ACU has a place but isn’t the uniform for every occasion. I’d like to see us go back to what I think of as common-sense uniform of the day/ job.