I’m a relatively experienced dev, but even I don’t have the tools or time to figure out whether some app is safe. So when I had Android hardware, I mostly didn’t install apps.
My kids and parents don’t even have the experience to recognize that an app could possibly be malicious; they wouldn’t be able to figure it out even if they had the source code.
So I buy Apple hardware for all of them, specifically because I like Apple’s gatekeeping. Because 99.99% of app developers might be great people, but if you have an open system, it’ll be abused, and I have better things to worry about.