To think that men shouldn’t be in female changing rooms?

Yes this!

But the worst one for me was M&S where there were two teen boys looking after the women’s changing room. I felt so uncomfortable.

What's the problem? Have a read of what happens to the sexual offence rate when men are in changing rooms.

https://womanmeanssomething.com/targetstudy/

A man was in top shop changing room in Leeds a few years ago and I stood in Fri t of him and blocked his 'view' of the curtain gaps. When he leant to one side to look round me I dramatically opened my coat in a 'batmans cape' motion. He left then and waited outside for me to leave. I discussed it with the staff and they were furious but unable to say anything.
He was not with any female, just a man, in the chafing room perving.

The women asking 'so what' ate ignorant of the nature of male paraphiliac behaviours and how dangerous they can be for women and girls.

Recently my 12 year son tried clothes on in Next and M&S I was told I had to wait outside in both stores, not outside the cubicle door but literally outside the changing rooms altogether. Son had to keep coming out and showing me if they fitted which he was embarrassed doing. I did ask for mixed changing rooms but there wasn’t any and he wasn’t allowed in the women’s to try on items!
Yet I went in New look and counted 4 men sitting on stools in the changing area outside cubicle curtains waiting for their partners! Crazy!

We like to hoik our boobs up, look at our arses and generally umm and ahh either alone, with mums, or friends. We don't want to be doing it with the male gaze on us - there's so few places we can relax and not worry about men! And as for men 'just waiting for their wives' well they are still men - let them wait outside like my dh does and like I do for him

I sympathise with you OP. That central area is to come out into, and to look into a mirror from a distance. It is not for men.

Men Should wait outside the changing room and be shown the clothes by their girlfriend or wife in the outside area.

Be passive aggressive. 'The mens is over there my lovely, this is the ladies. Oh you're waiting for someone? Out there is a good place to wait, this is a ladies changing room. I'm sure you understand and wouldn't want your young daughter changing in a room with strange men either.'

All said in chatty voice with big smile. Most will be embarrassed and head off. The more argumentative ones usually cave when you mention their own daughters and get the point.

of course you're not being unreasonable. They are changing rooms for women and girls, therefore there should be no men at all in there.

There are many reason why this will make women uncomfortable...if their girlfriends or wife's want to show the clothes to their men, they can stand at the door of the changing room...

Good men stay out so bad man don't get in.

Of course they shouldn’t be there. But remember, what men want is more important than women and their privacy.

If there is a door, I don’t see the problem. I think staff should keep an eye for loitering but husbands/bf are not loitering though.

They’re waiting for their girlfriends? Wouldn’t be overly worried.

The thing is these are female changing rooms. Even if some females don’t mind men in there it should not be allowed so that every woman feels comfortable.
The boyfriends can easily wait outside. If it is so imperative that the girlfriend shows him herself in the dress or whatever before purchase she can take a photo whilst in the cubicle and send it to him.

I often want to get DPs opinion when I try on clothes. So he waits out on the shop floor with all the other men also waiting for females, and I walk out to the entrance of the changing room. Neither he nor I have ever considered him coming into the women's changing area, because he's a man.

“the cubicle wasn’t big enough for both of us so she would have had to walk out to show me in full view of an adult male”

“The cubicles have these half doors so in theory someone could look over the door.”

If your DD didn’t want to step out could you not just look over the door?

The staff should be ushering them outside. If their partners want to show them what they are trying on, they should leave the changing room and go and show them. There is no need to have men sitting near the cubicles.

Yeah not on, wait outside, I always just nip outside if I want to show DH something (which I generally don’t bother with). It would be extremely unfair to other women. I wait outside the mens and also make a point of not looking through the door in case I make any men feel uncomfortable.

Although it was really awkward trying to talk with my 13 year old about period knickers and bras with a man hanging around. She was so embarrassed.

I wouldn't like it OP. I sat on a bench at the entrance to a men's fitting room while my ds was trying on school uniform, even though I was not in sight of the cubicles I turned my body to face out into the shop. That's showing respect to the men in there trying clothes.