[chajin]

When Abraham made his servant swear that he would go back to Haran to look for a wife for Issac, Abraham made his servant place his hand on Abraham's thigh to seal the covenant that his servant wiould do as instructed by Abraham. (Genesis 24: 1-9).

If I remember my exegesis correctly (and I may be mixing things up here) "thigh" here is a euphemism for the private parts, that swearing while touching the master's privates would be the equivalent of swearing while placing one's hand on the Bible today. Nothing sexual was meant by the gesture, however.

[Laissez-faire capitalist]

Yes, nothing sexual was meant.

Agreed.

But a woman wearing shorts (and thus showing her thighs) isn't sinful either.

Yes, some shorts can be very short, but how short is short?

And with this in mind, if pants cover more of a woman's body than a dress does (ones that shows her lower leg area), then why don't the Duggars wear these instead?

Women shouldn't wear mens clothing?

Godly people did in Moses time as well as in Abraham's time. Both wore robes. The point is, there was a differentiation between the robes that were worn.