BB - at that fun level I'm sure she'll be fine as long as she is neat and tidy.
Gymkhana games are always just casual - she can wear anything comfortable with her hard hat, body protector and short boots/chaps.
For the dressage just wear the same but jod clips rather than chaps and wear a jacket with either shirt/tie or stock. Any tack shop will advise you.
If she wants to do show classes then my advice stands. Of course under the tweed jacket she'd wear a shirt and tie. She would normally wear ribbons to match the tie or you could do her hair in a bun and scrunchy. I'd worry about that at the time.
Black jackets and black boots are no-nos for showing but you could get away with them for a Best Rider class as part of a gymkhana.
god it's a minefield ... I never realised there were so many rules ... are they written down somewhere or do people just 'know'?
This time she's just doing dressage and the gymkhana games - she doesn't have her own pony so will not be showing in the way I think Butkin means
However in the summer the riding school has a 'best rider' class as well as the dressage and gymkhana games which she'll want to do. I was hoping the same outfit would do for everything. It's not a 'posh' riding school and I can't remember lots of frantic changing going on in between classes last year but dd notices these things more keenly than I do ...
What would you class a mini coblet as, m and m or show pony? (i know she is not really either!)
Ds did a local show last year and wore tweed in first ridden, which was fine, but not sure which he is really supposed to wear... She is about 12h skewbald mini cob (or an angel dressed up as a pony!) I think her owner said she has some Connie in her somewhere but I'm guessing it must be grandparents or further back...
as a child long boots are an absolute no-no. Jodhpur boots and remember joddyclips (the things that hold the jodhs down under the boot). I was always taught hacking jacket for everything as a child except navy for showing (and canary jodhs with the navy jacket). Definitely no chaps. Dark gloves if riding a dark pony, pale if a pale pony. If long hair plaits with a discreet ribbon
If she is doing just dressage then a black jacket would be fine. She should wear a white stock with a tie pin (you can buy pre-tied ones quite cheapily if necessary). Matching hat cover - ideally in velvet. Light coloured jodhpurs - white or beige. Gloves - you can wear white but dark probably better if a beginner. Normally you'd do dressage in long black boots but guess she could get away with short boots as a beginner. Othere will advise you on this. Obviously she can wear casual riding clothes for the gymkhana games - chaps would be fine.
However just so you don't spend too much it is worth nothing that none of this would be correct for "show" classes. You never wear a black jacket for showing (just dressage/showjumping).
She'd either wear a tweed jacket (M&Ms) or Navy jacket (show ponies) and matching blue or brown hat with yellow(ish) jods and short brown boots for showing.
I remember being her age and showing and it seeming so deadly serious to me!
If memory serves correctly, for children showing, short black ankle boots are fine, chaps are a bit too 'casual' for a 'proper' dressage test! But honestly, it would be fine if she wore them. School shirt is fine and a plain, dark coloured tie if she has one.