Just 31% of 13- to 19-year-olds expect to buy all their groceries at supermarkets in the future, according a report by grocery industry think-tank IGD.
The study, Tomorrow's Shopping World, also suggests there will be a significant rise in online grocery shopping and an increased demand for specialist food retailers.
IGD chief executive Joanne Denney-Finch said the food industry was set to experience the best growth opportunity for a generation and added: "Technology, online shopping, ethical shoppers, healthy eating, premium retailers, market-focused stores and new attitudes from a new generation of shoppers are combining to shake up the status quo. We should stop claiming this is a mature industry."
The report asked 1,000 young (aged 13-19) or adult shoppers (aged 25-40) how they would shop in the future. Findings included 62% of adults and 66% of teenagers saying they wanted self-scanning systems at checkouts, with 61% of adults and 57% of teenagers wanting staff to pack their bags.
Some of the more quirky findings in the report included
8% of teenagers and 5% of adults being open to the idea of having a chip inserted into their body as a way to pay for goods, and 7% of adults and teenagers were willing to use biometric iris or retina recognition payment systems.
Some 12% of adults and 16% of teenagers wanted shopping trolleys to be fitted with satellite navigation systems.