I had them calling me regularly mostly walmart and olin mills people who wanted to get into real photography, then there was the graduating class from the tech schools. I honestly didn't need some kid out of school telling me what I was doing wrong, even though there was a lot I'm sure I was doing wrong. Most of them had no idea what I did, so I didn't bother with them. I had some adults that I trained, such as I could. They were people I met at the labs or people who were introduced to me.
Then there was my son in law. Need go no farther with that.
I began as an assistant, carrier of cases for a pro in 1969... In those days it was the old guys way of holding on a couple of more years, sort of a retirement plan, also a way for a guy like me to get practical experience.
I got his name and the intro from a teacher at the school where I took art and photography. She was also a friend which didn't hurt. So when he called to ask for a helper I was the one who showed up at this door.
He didn't give a rats rear what kind of photographer I was at first. It was my job to carry the bags and load the cameras. Eventually I wound up doing over half the work on a wedding and most of the leg work on all his portraits. I learned more about the craft of photography and a lot about people from that old man. I hardly ever got real money from him, but I was extremely well paid for my work.
That's all i know, but I never used anyone from the phone, Im sure email would be the same for me. It isn't like there aren't a hundred people who would love the experience of working with an even mediocre photographer like me.