Hi I'm an optician.
I'd be quite happy for my dd to wear contact lenses and if she becomes shortsighted, as she is very sporty I'll give her them for normal daily wear with spectacles as a backup.She is only 9 but if she needed and wanted them now I'd fit them as long as she was responsible enough (which she is).
The new contact lenses are so much better.Mostly when you look at the eyes nowadays under the microscope there is no perceivable difference in the eye which has been wearing a contact lens to one which has not and this is our aim as practitioners.
Now, I would go for the better contact lenses, as they really are better, and if she is going to be in contact lenses longterm she needs to be getting the maximum oxygen and these lenses are also more comfortable.I wouldn't see any problem with her wearing these contact lenses on a daily basis .I also don't see any reason why she would have to stop wearing lenses, as per your friends' experiences, unless she was not wearing the correct lenses for her eyes and not having regular aftercare checks.Where we get problems are people doing these two things.
I'm very shortsighted and used to wear hard gas permeable contact lenses (full time since age 15), but as I'm getting older and spectacles are much more fashionable now, am quite happy wearing my spectacles with soft contact lenses socially and for sport.My eyes are a bit dry now and I find the better (more expensive!) daily contact lenses so much more comfortable, so wear these.My eyes are fine though,no ill effects from contact lens wear.
I wouldn't fight with your dd over this.Just make sure she is wearing the best daily contact lenses and has regular checkups and her eyes will be fine.Perhaps get her to contribute to the monthly cost via some regular household chores.
Socially,peer pressure at this age is important and I really feel contact lenses are important for this age group.
YABU btw, as there aren't long term risks, as long as she does the above.
The risks of daily soft contact lenses are really very small and you will find most opticians wear or have worn them at some point, so that means we are quite happy with safety.
The problem comes when people don't wear the right contact lenses ( such as wearing a monthly change lens for 4 years as they didn't really see why they needed to change it and it is cheaper not to!) and don't have regular aftercare with upgrading of their lenses to newer generation ones if they are advised to by their optician.
Let her wear her contact lenses :)