Why are wedding guest dresscode rules so much stricter for women?

[Bettybooponeggshells]

I’m going to a family wedding next year and it got me thinking, after seeing so many threads about what is acceptable for women to wear as a guest.
why don’t men get the same stipulations?
They are expected to wear a nice suit but no one bangs on about how they’ll ’outshine’ the groom! Or get confused for being him.
In fact they are expected to wear their best suit!
But yet women can’t even wear a floral dress on a white background without being cussed out. Don’t get me started on all the other ridiculous rules, in case people mistake them for the bride or accuse them of trying to steal her thunder.
If you’re close enough to have been invited the likelihood is you will know who the bride is!
I get it some families are messed up (mine included) and there will be some that want to destroy the day but surely that only makes them look like idiots rather than actually having any effect (affect? I always use the wrong one) on the couples nuptials.

Not sure why this has annoyed me so much, I have no intention of wearing white as a guest. But then I’m more likely to get married in a rainbow dress than a white one.

why don’t men get the same stipulations?

They are expected to wear a nice suit

You've answered your own question there.
Men are unlikely to wear anything other than a perfectly ordinary suit, so don't need reminders what to wear or what not to wear.

Because men don't especially care about colour-themes and co-ordinating outfits. If a couple tried impose strict rules on male guests, chances are they would just ignored and look a little foolish. Much easier to focus on imposing rules on the women who are most likely to comply.

We have a wedding in autumn and the colour code (which is actually only 2 colours to avoid) applies to both men and women.

I plan to wear black or navy. Only in MN is this frowned upon.

Not sure it is-I'd rather wear a floaty dress than a hot suit, and we get more choices. Though these days, I suppose anyone can dress as they like and a lot of women do wear trouser suits at weddings.

I plan to wear black or navy. Only in MN is this frowned upon.

It really isn't "only on MN"

I've been involved in this conversation with a bunch of younger relatives, and I've also heard it at work, and I've heard it said by people in another group I'm in. None of whom, as far as I am aware, are MNers.

Because men have fewer options, therefore fewer ways to go wrong. Just wear a suit. I have actually been to a couple of weddings where a male guest was deemed by others to have "outshone the groom"... although it was all said and taken in good humour...
It's like when people complain that girls have stricter dress codes and uniform rules at school, but it's usually just a result of boys not having the same social pressures on them to wear clothes that show loads of skin. If boys started wearing tight leggings or tiny shorts to school, I'm sure the school would soon crack down on it (as they did in the 2000s when it was the fashion to wear their trousers low with their boxers on show).