As we know website can be developed either Responsive Web Design(RWD) or Adaptive Web Design (AWD).
RWD: No matter what the browser width may be, the site adjusts its layout
AWD: Adapt to the width of the browser at a specific points
is there any reason behind with magento choose AWD?
magento2 official documents refer magento2 use RWD. I felt which is not correct, RWD does not bother about break points (screen height and width). If I'm wrong please correct me.