oomis1105 – “The bottom line in married women covering their hair by any means, is to know why the hair must be covered> If it is to make them less attractive, then pretty wigs SHOULD be assur. If, the rationale is just in order to remind women that they are married, then it makes no difference WHAT they use to cover it or even how attractive that covering is.”
If the reason women cover their hair was to remind themselves that they are married, wouldn’t they have to cover their always, not just in the presence of men that they’re not related to (as I believe is the case)?
“If Hashem did not say to Moshe Rabbeinu to tell women to cover their hair “so that they will be less attractive to men other than their own husbands,” then this entire conversation seems moot.”
No, the Rabbonim have the right and the ability to figure out why Hashem said what He did, and then to apply that principle to other cases as well. This is how the Rabbonim have figured out what the halacha should be for thousands of years, ever since Hashem stopped talking straight to the Navim.