[Q] Private mode? Useful to you? topic

I was wondering if private mode is really useful to the average person.

I'm not using my phone for work purposes. It's all mine.
I'm not downloading warez or viewing porn.
I'm not running suspicious apps.
I keep the phone fingerprint locked and have remote lock capability. If I decide to participate in a public protest I'll take further steps.

Do any of you other "normal people" find that private mode is useful and if so, why?