Question: what is the reasons of being single man/woman (not married) to age of 40-50 +++? 

Answer: There could be a million reasons...don't want to be married, haven't found someone that they want to be with, they are shy and don't meet many people, their life circumstances haven't allowed them the luxury of considering marriage.......I could go on and on.....why don't you just ask the person?
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