Do you want fries with that?

Two of my grandchildren have jobs at McDonalds (not the same one) so I was aware of the fact that the chain are looking up go somewhat more tech-y and upmarket, with touch-screen ordering, more adventurous menus and waitress service.  There's been much discussion about this among the staff apparently, and the general feeling seems to be that the firm are in danger of throwing out the baby with the bath-water. McD's have made their name (and their fortune) on being a fast food outlet - with the accent on "fast".  Most customers go there for a quick tasty meal - order, scoff, go, as one put it.  It seems debateable whether that sort of customer will stay loyal if they no longer get what they're used to.  Presumably McD's have done their research, but it will be interesting to see what happens.  My grandkids are more worried about whether their jobs (such as they are) will still be there in twelve months' time.