Given the realities of our modern age and the demands of our children's future, is it really ok to allow teachers to choose whether or not they incorporate modern technologies into their instruction?

This questions is an interesting one. In the past teachers have generally been assigned a curriculum, but it is up to them how to teach it and what resources to use in order to teach it most effectively. For example, some Biology teachers use a large number of dissections while others use a large number of well made diagrams to illustrate the same anatomical features of an organism. I believe it should be up to the instructor whether or not they would like to use the technology available to them as long as the student that come out of that classroom have what they need from it to succeed.