I feel it's wrong for my son to email his former teacher to ask if it's okay if he visits her classroom in school because she's married and he is the opposite gender of her.She is a married 25 year old teacher therefore it's wrong for my son to ask if it's okay if he visits the school.Her husband will be jealous and upset about this because it's wrong.If my son was a female I would be perfectly fine with my daughter emailing this teacher to ask this teacher if it's okay if she visits the school but since my son is a male,it's wrong.
Which country are you living in? I suspect that the attitudes of the people involved are going to be heavily coloured by their ethnicity and upbringing.
Just back from a great day and evening out last night with family (irrelevant to here) and logged in to see where i left off last night, scanned the replies, somewhere I got lost between my son and my wife emailing someone of another gender, is the teacher your wife? don't reply, I'm just logged in 5 mins and already decided to put kettle on and leave this to other genders with more patience than me.