My 8 yr old grand daughter masturbates openly and won't stop even though she's been told often that it's a private thing... not wrong, just not what we do in front of others.
Her teacher last year seemed to have a way of controlling her, but now it's holidays, and she's quite defiant, telling me it feels nice, so why shouldn't she do it? She is a very forceful child, and can be rude and cheeky to adults, but she can also be very caring and sweet. Her Mum and Dad split up when she was 1, and she idolises him, though he left for Gran Canaria 6 years ago and returns sporadically. She has an older sister, 11, and a baby half sister, 10 months. She's been doing this for at least 5 years!