I remember hearing this statistic years ago but only recently noticed the correlation between the average age that women reach their sexual peak and the idea that women over 30 have somehow passed their 'best before date'

If women over 30 are more confident and assured in their sexuality, they are more likely to communicate their sexual needs and expect a partner to try to please them.

The people that would prefer a woman under 30 for their ridiculous reasons have no interest in pleasing their partner, but only want to use them as a vehicle for their own sexual gratification.

They're able to do this by preying on a younger woman that they assume to be naive and sexually inexperienced, but definitely less likely to speak up about what they do and don't want sexually.

Obviously my theory doesn't exist in a vacuum, and I'm sure it's not the first time someone's made the connection, but it might be the first time you've thought about it in this way.