The Maze: Stores still introduce Gen Z to brands. Social media helps close the case. McKinsey’s March 2026 customer-journey survey puts physical stores ahead of social for Gen Z brand discovery, 28% to 23%. At purchase evaluation, the order flips: social media reaches 34% while stores fall to 21%.
Gen Z’s journey changes channel halfway through. The 11-percentage-point social-media increase from discovery to evaluation is the sharpest handoff in the selected comparison. A store can still supply the first encounter, particularly for products that benefit from browsing or physical reassurance. But when people weigh a purchase, creator content, peer signals, demonstrations, and platform-native recommendations gain ground. Discovery and persuasion should not be planned as one funnel step. The content that earns a first glance is not automatically the content that settles a comparison, answers an objection, or establishes social proof.
Boomers follow a materially different channel logic. In-store is the largest selected influence at both stages: 52% for discovery and 31% for evaluation. Social media rises from 7% to 16%, but it does not overtake stores. That does not make boomers “offline.” It means a retailer that treats one channel mix as universal will overinvest in the wrong proof point for part of its customer base. In practical terms, store execution, availability, knowledgeable help, and the confidence supplied by a physical visit remain closer to the decision for this cohort.
Social influence is not the same as social checkout. The question asks where people first encountered the last brand they discovered and which channels influenced their purchase decision most. It does not measure a click, a shoppable post, or a completed transaction. The commercial implication is subtler: social needs to carry credible product proof into evaluation, while stores need to turn physical discovery into a reusable digital story. The distinction protects teams from celebrating reach metrics that never affect consideration, or dismissing content that is doing a real but upstream job.
Channel measurement needs a stage, not a blended attribution model. Lumping discovery and decision together hides the switch that matters. For Gen Z, a brand may need stores, search, or retail media to get noticed, then social content to make the product feel chosen. For boomers, store staff, assortment, and physical availability may retain more influence further downstream. “Omnichannel” is not a strategy if the same message does every job. Planning should specify the outcome expected from each channel and cohort before allocating spend, production capacity, or store labor.
The report’s wider implication is not to abandon stores or over-credit a feed. It is to design handoffs deliberately. A physical encounter can create the memory; a useful social proof asset can carry the decision; a retailer needs both to be consistent.
Why it matters: Retailers and consumer brands need separate scorecards for first encounter and purchase evaluation. The prize is not simply more social content. It is matching the proof to the moment: social validation when Gen Z is deciding, and a dependable store experience when boomers are still leaning on it.
Sources: McKinsey, *State of the Consumer 2026* (June 22, 2026); McKinsey Customer Decision Journey Survey (March 3–10, 2026; methods reproduced in Exhibit 2).
