The NeoSentient said:
Salam Quahom....why must nuns cover their hair?
What you are describing is the "chapel veil". It is also noted that certain catholic orders still perscribe to the "requirement", while others do not (out in public). However most nuns still wear the chapel veil in church, even if it is a symbolic form as opposed to the full veil. Franciscan, and Bennedictian orders keep much of the traditional wardrobe, while Dominicans may or may not.
After the Code of Cannon Law's revision in 1983, the code became silent on the issue. Though still on the books, some orders do not enforce the tradition.
you will also note that Nuns typically wear a "wedding band", signifying their symbolic marriage and commitment to Christ. As such they are for lack of a better term 'betrothed' or married to Christ, hence the original requirment to be fully veiled in public and in Church.
Finally, Paul advises that this is also done for the sake of the Angels in Church as a sign of respect (and I suspect as a means of keeping Angels from looking upon women, in any manner other than chaste).
Personally, I like it, for the simple reason that when I look at a traditionally robed Nun, I think of her as a holy woman, and nothing else. However when I meet a woman in plain clothes who says she is a Nun, there is a disconnect at first. Human nature I suppose.
Hope that answered your question.
v/r
Q