any woman over 30 can be used in some way to promote mature. Obviously, the older the easier it is to find sponsors. However, a number of the mature sites have banners promoting 'over 30's'.
30 - 40 - I promote as an alternative to teens..ie real women
40 - 50 - I promote as mom/teacher/aunt type
50+ is granny material. Those rare pics of really really old women are treated almost as a bizarre or freak type content.
my 2 cents.
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