Do you have this among your childhood memories ?

Yes. As a child, our milkman was called Fred. He delivered very early, so I only saw him on Friday evening when he'd call for his payment. When Fred retired, Gary was out new milkman. I was in my early teens then and used to take my dog for a walk before school so id see Gary doing his round. But, our dog wasnt very friendly so Gary wouldn't come into our garden to put the milk on the step so Dad strapped a small crate to the fence post so Gary could pop the bottles over the fence!!
I remember the milk freezing and pushing the silver caps off in the winter and the birds pecking through the caps to get to the cream.
My mum would never buy super market milk. She always said she didn't want to do the milkman out of his job.