Each, and every time I go home I shut it down, than back on again when I go out. No issues. I do not use the alarm clock either. I had the iPhone 5s.
I use it for some GPS once a month at most, one or two voice texting per week, very few photos, very few phone calls (Not a kid), no music (Great system at home ), very few e-mails, very little SIRI use, no movies (HDTV is for that).
Not young, am retired, I have two computers in the home, so I don't play with my iPhone like others do. Have a real life
I do not know charging to be a joy, but it is part of daily life with an iPhone. Nonetheless I do restart my phone about once a week for good measure. I've had both Apple Geniuses and AT&T support staff tell me restarting your phone no matter what kind it is every few days will generally prevent most issues. It sort of like folks that never close apps versus those that do close them once a day or so. Whatever works for your own experience then that is what you should do.