Why do ancient brides always bow their heads subconsciously after covering their heads with red hijab?

For this question, I have the following thoughts ~ purely personal feelings, don't spray O ~

First of all, the first possibility is that covering the hijab symbolizes marriage, which is a kind of shyness and joy from a girl who wants to marry her beloved. Generally speaking, from the psychological point of view, hijab undoubtedly forms a kind of space, but in a narrow space, it will make people unconsciously think. So there will be a certain sense of tension, so I will bow my head.

Then, because the people under the hijab can't see anything, they only look down at the space outside a little. She is looking forward to seeing her sweetheart's feet and marrying her as soon as possible ~

In the end, this is just a personal idea. I hope I can help you. Good luck ~