I use my old S3 for punting, unregistered PAYG SIM. Takes 8MP photos, HQ videos, pefect.
I'm single but I have grandchildren who like to play Candy Crush and such on my phone, their Mum's phone, anyone's they can get their hands on.
I wouldn't and couldn't risk them seeing a photo of Last Night's Girlfriend with her legs apart and a vibrator on her clit.