I agree sheltering your daughter and not letting her face her fears, will only enforce them more. I understand its stressful to see your daughter upset in those times, but honestly the best thing to do is let the educators handle her. When my daughters went through kindergarten, there were a few kids who had separation anxiety - the teachers said ..."briefly say good bye and then leave...don't look back even if they're crying". Even better would be letting a child like this take the school bus so there's no pining at the school or getting out of the car. Children are very resilient and they have the ability to soothe themselves and eventually the child will adjust. I was a very painfully shy child who didn't want to go to school and thanks to my mom, who didn't listen to me in regards to that.

It may even take a couple weeks of the child crying and testing the boundaries but it will happen. Enforcing her fears is enabling IMO, even though I realize you think you're doing the correct thing. Children also pick up on their parents fears. Even children with challenging disabilities can go to school.