I don't understand this. Why is it that we pay for the computer, storage, cloud services, etc. for a hobby but a $99 fee is somehow terrible? People spend thousands of dollars on all kinds of hobbies. Even if you get someone else to pay for the computer etc., a $99 dollar hobby is ridiculously cheap.
I started programming when I was 13. I did not have anywhere close near $99 to spend, so Apple was completely inaccessible to me. Eventually I did make a few thousand from an Android app at 16, which was huge. But at that point I had moved on to other things and never wound up giving Apple their $99. And I also didn't generate several thousand dollars in revenue which they could've taxed 30% of.
But for every person like you, that fee probably keeps out orders of magnitude more abuse, spam, trolls, other nonsense.
Apple isn't dumb (their evilness is debatable). I'm sure they have tested price points and giving free dev accounts and looked at results. If it produced more harm than good, they'd remove it.
And yet somehow Android, Windows, Linux and even MacOS itself all manage to be just fine while still allowing sideloading. Of course MacOS is going down the same dark path by hiding the install option in an obscure menu and lying to the user about potential security issues, but still.
iOS is the only platform that supposedly NEEDS to extract this fee. Stop believing Apple's lies, they've been grifting everyone for years.
We shouldn't forget that hobbyist programmers can write and test apps without paying the $99 fee. The tools are freely downloadable.
"You can learn how to develop apps for Apple platforms for free without enrolling. With just an Apple ID, you can access Xcode, software downloads, documentation, sample code, forums, and Feedback Assistant, as well as test your apps on devices. If you don’t already have an Apple ID, you can create one now. To distribute apps, join the Apple Developer Program."
But they won't. Nobody wants to work on something that they know they have no chance of sharing with their friends without paying a (for them, in that point of their life) significant sum of money for that privilege.
Apple is against open source marketplaces, they would fight tooth and nail that something like F-droid could never happen on iOS. They spread FUD on their conferences that open source hobbyist software is full security holes and people should be afraid to use those, the "device owners" are actually renters for them.