I'm 47 and routinely fuck girls the same age or younger then my own offspring.
(Some of them off camera, even [I love girls with "Daddy" issues].)

I would think that there is almost always going to be a larger-than-average age difference between male and female performers for three reasons:

Once male talent has proven themselves to be a dependable performer, they tend to stick around for quite a while.
Female performers seems to average a 6-month turnaround rate so there is ALWAYS young new pussy joining the industry.

The largest demographic that actually seems to pay for porn are middle aged men, it's not unreasonable that that audience is catered to more than others. You gotta follow the money.

The majority of the industry is run by middle aged men.


My 2c, waddaya think? Hit? Miss? Close but no cigar?
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I'd rather be ignorant than stupid. Ignorance implies a lack of knowledge which is easily correctable through education. Stupidity implies an inability to learn. Therefore; ignorance is temporary, stupidity is forever!