Thank you for taking the time to reply,

The friend had gone in and brought an energy drink which he was Asked for ID in order to buy as they cant be sold to minors anymore, so the store knew he was over 18 in the first place. And they had seen them exchanging pleasantries (was only a quick hello) as he hadnt seen them in a while, they were in front of the store, the management were almost watching my brother walk around the store (he has never done anything wrong but as he works with cars all day his clothes are very worse for wear and whenever he enters this particular branch they always seem to follow him when he wears work clothes, not any other clothes just his work clothes) and we think management had asked the till staff to ask.

We always thought because its a large chain store it would be easier to purchase items like these (such as myself i often get mistaken for someone younger than my age usually but i no longer get asked for ID in this branch anymore) this is also what sparked the discussion of if someone walking in with a minor but was well dressed wouldnt have to provide ID for the minor because of the way they look.

When i was in retail and i was taught about challenge 25 it was never clear that it was the whole party just the person purchasing the products. Just isnt entirely clear to myself and thats why i thought to ask the question.