Automation in in logistics and warehousing has been happening extensively for decades. However, with margins in large scale grocery retail are often far below 5%, any significant investment in unproven innovation will impact profits in a way that will be extremely noticeable to boards and shareholders.

This isnot to say it can not be done, as clearly the other side of the coin is that operational efficiency gains are also much more noticeable on the bottom line than in higher margined businesses, but it is higher risk/reward for low margin sectors. This will favor developing/proving the early TRL stages in new entrant or niche players, then buying out the successes when they hit early maturity.