Reply To: wedding dresses and walking down the aisle

I am quoting from the sefer “Halichas Bas Yisroel”- “In some communities,it is customary for brides to cover their hair before the wedding ceremony to ensure that it will be covered at the moment of marriage.Elsewhere,brides cover their hair after yichud.Still others wait until the following day to cover their hair.”There are 3 footnotes in the sefer that bring down exactly where each shitta comes from,and they are all valid,major poskim.Feel free to look it up.