'She wants to try into, I say try first because her horse is already trained'.
I disagree.
She'd be better off doing intro. Her horse is not trained to do dressage, if I understand you. So she/he should start at either training or Intro. Intro would probably not be as shocking to start out with - training level classes are usually gigantic and full of people who have been doing training level for 20 years - not that I think that's even half a good idea, but after 20 years, even a blind squirrel can find a nut.
'High frame'
Well, that's wrong because THERE IS NO HIGH FRAME. But there is also no LOW FRAME. There is no 'training level frame' and no 'first level frame' and there is no any level frame.
'Low and consistent'....um....no.
That is for Western Pleasure, it has nothing to do with dressage, not even 'a little low, not as low as Western pleasure, but a little low, and consistent'. 'Consistent' usually means 'the horse holds its head still'(sometimes camoflaged as 'maintains consistent contact with the reins/bit/hand', but actually means 'holds his head still'), and that ain't it either.
It definitely will fall flat at a decent competition. It only works when no one else in the class is doing any better than that, and usually, at even the smallest show, someone is doing a lot better than that.
"Sometimes the one that wins is the one that stays in the ring"...sure...but it won't cut it at a better competition.
"there always is at least 1 rich teenage girl bragging about her German breeches"
That depends on how well the one rich teenager with the German breeches can actually ride in the ring. Some of them ride pretty danged good. Some of them don't. They can say anything they want in the lounge, what it really depends on is how they ride.
By the way, I love my expensive German breeches. They last ten years getting pounded on every day. While after six weeks, a pair of Irideons looks like 'Fashions for the Homeless'. The expensive German breeches' are actually far, far cheaper. I can buy 100 pairs of Irideons to last as long as one pair of 'expensive German breeches', but it would cost me five times more money, and I don't like shopping anyway. Aside from that, the cheap ones don't keep me from getting all bruised up, cut up, and blistered up. The expensive ones do.
There are a few lousy dressage judges, they tend to hang on and survive at the smaller shows where people don't realize they're judging badly. But they usually don't crawl out of there...at least not for long.
Sometimes at schooling, club and small shows (or even, larger shows in non-dressage areas) there are bad judges - but in fact, usually, they aren't judges at all. They have little or no training. They're dressage judge CANDIDATES, Learners, or...... 'PEOPLE WHO WANTED TO JUDGE AT OUR SHOW...because....'. Usually, those guys think they can judge dressage because they judge hunters, or Western Pleasure. And they do a bad job - they get it all wrong, and they mislead people who are looking to them for guidance.
Occasionally you see a 'r' ('Little r') judge who is not exactly with it, but usually, by the time they get their 'Big R', they are pretty solid. I used to always try to go to shows that had 'Big R or better' judges and was incredibly happy with them. By the time they get to that point, they're either recovering in a Buddhist monastery or they are very, very good.