What are the risks of shaving a German Shepherd dog?

I have two beautiful German Shepherds, both 12 years old now, which I brush daily. I enjoy the brushing and love my dogs.

A friend of mine wants to buy a Shepherd and shave him to control shedding. I am really upset with her. Told her that she should not buy a Shepherd if she is going to shave him and that she should consider another breed. She insists that shaving is not only OK but recommended by Vets.

Am I wrong or is she?