yes if you're shy, sometimes things like that can feel incredibly hard, and being made to do them isn't going to help.
Gradually learning yourself to do more and more difficult things, yes. But someone else deciding for you what an appropriate first step is, when it might be miles beyond your comfort zone, doesn't help at all - the panic can get so bad that it then makes it impossible to go back to easier steps. Or in my case, meant that I had to force the panic down enough to not show that I was scared, for fear of being made to do something. So I learned to cover up just enough to do occasional things, but never got comfortable or confident, was liable to have panic attacks at random times which then confused everyone, and learned to hide any and all emotions. Bad idea.
Much better would have been able to have whatever support and modelling I needed, for as long as I needed it, and to be able to go at my own pace to overcome things.
It was impossible to explain to someone without the crippling shyness how different situations might be that otherwise seemed the same - why was the doctor's reception ok but not the dentists, or asking for a drink in one place fine, but another terrifying? it was the smallest, subtlest of details that were huge in my mind and made all the difference, but would have sounded ridiculous to try to explain.
So if it's shyness, then take time and let her work it out as slowly as she needs.
If it's just laziness, well that's another thing!