(Now I see the original OP)
And actually she DID ask the men, this site (contrary to popular opinion), is frequented by both sides of the mechitza. One side generally suffices with one tenth .. due to a gemarah somewhere)
And the reason is because we’re really supposed to wear them the whole day. Indeed olden times that would be the rule. Nowadays when we can’t keep to the constant level of kedshah required, we remove them out of reverence, once the minimum requirement is attained.
If one CAN keep to that level, all the better. He is sanctifiying himself more and more with these most holy mitzvhos. They surround a person, infuse his neshamah, his mind and heart with holiness.