I know how to not enable side-loading. There are a dozen friends and family members who I provide tech support to and I don't trust any of them to never follow

I know how to not enable side-loading. There are a dozen friends and family members who I provide tech support to and I don't trust any of them to never follow the clearly written instructions which Epic will provide showing how to sideload Fortnite onto their phone. Sure, maybe Epic can be trusted. But perhaps Meta decides that the latest/most desirable versions of Facebook, Instagram and WhatsApp have to be side-loaded. Now it's commonplace. Now everyone's phone has sideloaded apps installed. Sure, maybe Meta can be trusted. But perhaps some new future TikTok-esque craze besets the mainstream, and it's in the form of a sideloaded app, made easy because sideloaded apps aren't unusual, and the company who makes this viral app is dodgy as f***. But sure, it's always the user's choice.