Are you serious??
It looks like from your avatar pic that you're old enough to know a teeny bit about computing history.... but here is a refresher:
The modern day PC operating system is based on a lot of legacy code. The modern day mobile OS is.... well, modern. iOS is surely more secure than, for example, an OS like Windows. This is largely due to a VERY tightly controlled app experience. It is FAR easier to get malicious code to run on a desktop OS than on a mobile OS. You have both of the major OSs trying to change this. Microsoft made their Windows Store... Apple made their Mac Store... there are options for "only allow apps from the App Store" on both. This is in an effort to make desktop computing more like mobile computing. That is to say; less worrisome as you install apps. Not having to carefully look at EULAs to ensure you're not accidentally installing some garbage search toolbars or faux antivirus ransomware as you install the real app, etc.
This is a move FORWARD.
If you've never experienced a buggy computer riddled with spyware & junk, I encourage you to try.... well, pretty much ANY personal computer not owned by a "power user". They'll likely have "search conduit" or some other insidious malware installed. Even the uninstallers are worded crazily & if you're not careful, you're installing even MORE spyware junk, even as you remove the last! Surely you see this as bad, yeah?? Are you really thinking that since this isn't currently an issue on mobile, they are likely about to try to make it a problem on mobile?? Even as they are moving desktop computers AWAY from this experience & legacy way of doing things, you think they're eager to simultaneously move mobile computing in the OPPOSITE direction, back to how they did things on desktop for the first 40 years??
Lol... someone needs to put on their thinking cap.