Why are many against reloading.
Lots of reasons, I'd guess.
Lack of room, intimidated by lack of know-how, and the fact that some folks have made some serious mistakes with it can cause many to not take it up.
If a person is going to be a serious shooter without being independently wealthy, they really should consider it.
Especially if they shoot anything that's chambered for a less-then-mainstream cartridge.
.17 Remington is limited in quantity and choice, but I love shooting the cartridge. My rifle shoots the only factory ammo I've found (Remington) into 3" groups at 100 yards, and it costs a little over a buck a shot. My handloads shoot tiny little bug-hole groups at the same distance, and with premium bullets they cost me around $0.25 per shot.
Some folks don't want to mess with it for lack of time, but I don't find it time consuming at all; in fact, it's a relaxing hobby. I put 500 or so empty .40 S&W brass into the tumbler about noon yesterday to clean them, and spent a few hours this morning sizing, belling, and priming the cases. They're ready for powder and bullets now, which is not that big of a deal. After 34 years, I still use the same single stage RCBS Rockchucker press. I've no idea how many thousands of cartridges I've loaded on that old press, and it still does things as good as it ever did. I clean it up once in a while, and keep a tiny bit of lube on it. I have 17 sets of dies in my loading room, and all are well used.
I can't imagine having to rely on factory loads for my ammo needs.
Daryl