It's a matter of degree. To simplify, the costs of switching are linear in the complexity of using the product. I apologize that I don't know how to precisely model human network effects (you need to learn the product from someone) on top of it, but intuitively the societal costs are super-linear.

Computer systems are by far the most complex products human kind has ever produced. Given the simplistic model sketch above, the costs of switching in the computer industry are the highest humanity has ever seen, likely by orders of magnitude. Fun times.