Privacy in childhood

What were the privacy norms for using the bathroom in your house when you were a child? I was raised by a divorced Mom and was the only boy of 4 kids, and as a boy I feel like my privacy when I'm the bathroom was considered way less important than anyone else's in the house. Mom routinely came in the bathroom and sat on the edge of the bathtub and had conversations with me when I was stinking up the bathroom. When I dared to suggest--*very* respectfully, since she wasn't afraid to punish for any backtalk--that I was uncomfortable with it, she laughed and said "I changed your smelly diapers for three years, I can stand the smell." This went on into my teens. My sisters also barged in a lot although they didn't stick around talking like Mom did. Anyone else have a similar environment growing up?

There was no expectation of privacy when i was a child at home or at school, and i think that's normal, as it would be in institutions such as the military, i really dont see the point in privacy really, for example the demise of open changing rooms and showers in England just seems rediculous