Wow....... OP, I do think you have pointed out the significant differences between you and most of us who consider ourselves genuine hobbyists/enthusiastic amateurs when it comes to photography. I shoot a lot. Often daily. I also shoot many photos at a time, not just one or two snaps and I'm done. When on an excursion away from home it is not unusual for me to shoot several hundred photos, and even around home I've been known to do that when I've got a particularly compelling subject. I can easily spend an hour shooting one subject, really "working" it, so to speak.
For one thing, I don't just point the camera at the subject and shoot a couple of times and that's it. I actually work with my subject, trying different perspectives, different vantage points, different exposures, different apertures and different shutter speeds in order to get different "looks" and depth of field, etc., etc. When shooting an animal I shoot images of the creature doing different things, moving around, different head angles, whatever, in the hopes of catching something really unique and interesting. Sure, I could simply fire off a shot or two of Alfred standing on the pier, but I stand there and watch and wait.....and maybe can capture a good shot of him scratching his head, ululating, stretching his wings in an odd position, taking off in flight or diving into the water after a fish. I watch the Hooded Mergansers and Cormorants and patience pays off when one of them submerges himself and then comes back up with a fish flopping around in his mouth.
The day that I purchase a new camera I also purchase at least one extra battery for it (unless I already have batteries from another camera which also will work in the new one, and even at that if I plan to use both cameras simultaneously, one on the tripod and the other around my neck, I'll buy an extra battery anyway). When one is out in the field shooting and far from electricity, that is not the time to run out of power for the camera. Two, sometimes three, batteries should be in the photographer's bag. Same for memory cards. My A7R IV has two memory card slots and on a long day's photo excursion when sometimes things can get really hectic, it is convenient to have cards loaded in each slot so that when one card is used up the other card can continue right on with the shooting and the photographer's momentum is not interrupted at exactly the wrong time. Again, two or three extra memory cards should always be available in the photographer's bag as well, for those times when there is a LOT of shooting going on and also in the event of some unexpected disaster happening to a card -- corrupted images, the card breaks, etc.
Since my camera creates large files I use cards with 64GB at a minimum and on excursions when I know I'll be shooting much more extensively I use a 128 GB card. I haven't gone on a trip yet where I've needed a card with greater capacity (say, 256 GB) but that day will come eventually once traveling really eases up and I'm out on the road again. When I am spending the time and energy to be out there shooting and getting images which may never be replaceable, I want to have spares of everything at hand so that I can concentrate on what I'm shooting and not worrying about running out of battery power or running out of memory.
Depending upon my subject matter I also of course adjust the camera settings to best suit the occasion.....that is, when shooting a macro either outside or in the house, I have the setting at Single Shot, so I get one shot at a time. When shooting the geese, ducks, herons, cormorants and other denizens of the small lake upon which I live, I have the camera's drive set to Continuous High in order to be able to capture a moving subject quickly, firing off several frames per second. This of course does quickly take up space in the memory card, another reason why on a trip or excursion away from home a photographer needs more than one card! It also can use up battery power pretty quickly, too, so there is the need to have extra batteries at hand. Even when I go for a walk around the lake I always carry an extra battery and an extra memory card in a small pouch in my pocket just in case I happen upon a once-in-a-lifetime opportunity for an amazing series of shots...... That is NOT the time to suddenly run out of battery power!
Everyone has their own approach to photography, of course, but for most who are serious about photography, being stingy about the number of megapixels one uses, the number of shots one takes, the number of batteries one has available and the number of extra memory cards one has ready at hand simply isn't the way we roll. Most of us are properly prepared when we set out to shoot something.