Asked stepson to pop to the local supermarket and get a few things for me (I have mobility issues so he often pops to shops for me, usually without issue). Gave him a list, only six things in total, all of them pretty straightforward. Noticed he was gone a bit longer than usual but assumed he was just stuck in a queue or had bumped into a friend. Eventually he reappeared with no food whatsoever, saying he 'couldn't find' a single thing on the (very short and straightforward) list! Forgetting or not being able to find the odd item I could understand, we're all human, but he claims he couldn't find a single thing on the list, not even bananas ffs! By then it was too late to go back as the shop would've been shut. Asked him why he didn't ask a member of staff (big supermarket so plenty of help about) - 'i dunno'. Asked him why he didn't come straight back and tell me, rather than hanging around for so long that by the time he did finally come back the shop was shutting - 'i dunno'. Gave him a talking to about using initiative and asking for help when needed, but feel it really shouldn't have been necessary to still be having to explain that at his age. When chatting to my DH about it later, he didn't seem to think it was a particularly big deal, and there have been similar situations in the past where he's implied that I have unreasonable expectations for my stepson and am unnecessarily harsh on him. Am I really being unreasonable to expect a 13, almost 14 year old to be able to complete a basic shopping list and to use initiative and common sense when needed, and to feel that to not do so is taking the pee?