There are sites that ask this question but most are for younger visitors, who may be less likely to go commando. I have seen that mature men are more likely to go commando than teenagers, so maybe the same applies to the females. The sites that I have seen mostly show about 10-15% of younger females go commando. I did see one that covered a wide range of age groups but can't remember where it was. That showed low figures for females under about 25 but increasing dramatically as women grew older. More than 1 in 3 said that they regularly go without panties in the over 40 group.

I know that my wife goes commando most of the times unless she is at work or the other thing. But the bad thing is that she doesn't like to wear a skirt. She thinks she is to fat but I tell her she is sexy to me.

Very Sexy!

The first photo the blonde chick is smokin' hot

I'd actually say it was probably the other way round - though I obviously haven't done a survey! My guess would be that younger women would go commando, especially when wearing lot cut jeans or trousers, because it's a fashion thing; whereas older women might do it more as a sexual thing.

Just my guess though.

Here's some for ya

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somre more
 

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man, #3 is a terrible photoshop job - it's not even on the right axis (and I have the original, panty wearing version). others look good though