No. It’s more than than just a learned behavior.
With the AppStore I know
- I’m less likely to download something that has malware, and if did, I’d bet Apple would remove/block it as soon as it was discovered.
- I can get my money back if I don’t like a purchase I made (as long as I don’t abuse it)
- I can easily cancel a subscription
- My payment information is safe
- The App will stay updated through the appstore
I did one of the first iOS jailbreaks back in the day. The Cydia (i think it was Cydia or something like that) apps would constantly crash my phone and causes glitches. Similarly, I’m very cautious installing non-AppStore software on my Mac, whereas if something is on the AppStore I install it with abandon.