OPSEC: Know your threat model and act accordingly
#Privacy is different for everyone. Not everyone needs privacy in the same way as another.
A Journalist or a whistle-blower working in a repressive regime needs more stringent protection than someone who sits on the couch and watches Netflix every day.
Having privacy is essential for anyone, but what level of privacy you need depends on your threat model and personal preference.
Know your threats:
First, you need to understand what is your need for privacy. Some want privacy from spying apps. Some from their police or government and some from their spouse or stalkers online.
A lot of people have something to protect, and you should build your #threat model around that.