How do you know that she actually understands what the word "disgusting" means?
If I were you, I'd talk to the pediatrician. It's actually not good for her to have a ponytail all the time. It can cause problems with her hair/scalp.
What may be a problem is how you deal with her behavior. A therapist might be able to help you learn how to react and deal with your daughter so that you don't feed into her issues with looking into a mirror and seeing herself in a natural state with her hair down. As far as her clothes are concerned, I wouldn't think a thing about her not wanting to wear a dress if there wasn't such a strange reaction to looking at her hair long.
You shouldn't be telling people not to "read into your question" or chiding people to be respectful. People are going to tell you what they feel you need to hear based on what you have said here. You might not like their answers, but you've asked a question here on a public site, and they have a right to read into your question as they think they need to. It's not like you've written a book here, and we only have just so much to go by. Sometimes you need to hear something that's not "easy" to hear. Just because you might not like it doesn't mean it's disrespectful.
By the way, here's what the article that Elena B cites in regards to Peppa Pig. Not allowing her to watch that show should be your first order of business:
By Naomi (with her two-year-old daughter Tamara) questions Peppa Pig's influence on our children:
"Spoilt kids, a bullied husband, an antagonistic father-in-law and a mother in need of Prozac… it might sound like a new family on EastEnders' Albert Square, but it's actually Britain's most influential family – Peppa Pig and her herd.
She stamps her feet, bullies her brother, makes fun of her parents, falls out with her friends, whinges when she loses, pokes out her tongue and generally displays copious amounts of antisocial behaviour.
So when I read about three-year-old Amari Black earlier this week, whose malfunctioning Peppa Pig toy from Argos was spouting swear words, I couldn't help feeling it was merely a natural progression from Peppa's on-screen presence.
Yet so popular is the four-time Bafta-winning cartoon that it's overtaken Thomas The Tank Engine as Britain's top-selling pre-school character and this month made it to the big screen for the first time.
Peppa has even managed to succeed where Cheryl Cole failed by cracking America, despite her inferior wardrobe. The programme has seven-day-a-week status on American kids' channel Nick Jr and a Fisher Price deal, which is transforming the brand into a billion-pound money-spinner.
You'd be hard pushed to find a small child in the country who can't name Peppa and her baaing, woofing and neighing crew - and my two-year-old daughter Tamara (following in the footsteps of my son now five and daughter, six) is no exception.
In truth, I've actively encouraged Peppa mania. I've bought the DVDs (as an emergency back up for the 55 episodes recorded on Sky Plus), read the books, made the birthday cake, bought the pyjamas (and slippers and dressing gown and toothbrush), downloaded the app and we've even been to the 'World' (at Paulton's Park in the New Forest).
But recently I realised that the tone of my daughter's new fake cry was eerily similar to George Pig's frequent 'waaaah' - and had developed simultaneously with her interest in the little pig.
When I started to think about it, it wasn't the first time I'd noticed Peppa Pig's influence on my children's behaviour.
It reminded me of an incident from when my oldest was three. After the usual tug-of-war over a dolly with a friend, she shoved her hands on her hips and declared, 'I don't want to play with you anymore!' To which Lilly blurted out, 'I don't want to play with you anymore!'.
It was a live rendition of Peppa and Suzy Sheep's argument in the episode called 'The Quarrel'. And on the lips of my three-year-old it sounded even more unpleasant than on screen."