Unfortunately, shops aren't required to join Oata or the Big Fish Campaign and so on, many of the independants don't bother and its unfortunate.... maybe instead of whinging about seeing these shops stocking these big fish and having untrained staff, you should be petitioning to the right people that it should be made a requirement that stores are a member of Oata, that the join the pledge to not sell 'big fish' and that their staff have at very least the basic formal qualification.
Not that the qualification means much when you are only given very basics and taught the questions to ask but not what answers are acceptable lol.
People are right, it just isn't acceptable as it is now but you are seriously all complaining to the wrong people, no good you sitting here griping about stuff on the forums, if it really matters to you... do something about it.