i think it might depen on the shop and where you live
where i live we have a hgh influx of french, spanish and german visitors - peple who live around here and who have a spare room get rewarded handsomely forrenting that rom out to a company who brings the foreign high school students to sunny worthing.
this means at certain times of the yar there is a high % of teenagers.
and it is highly amusing to see how - no matter what country hey come from - they had around at the bus stop, or at the co-op.
it certinly is mass demonisation of a certain age group
when ther are 8 or 9 teenagers that are bigger than yo rowding the enterence to a shop you want to go in, they make fun, ridicule, spit at, swear at, bully into buying beer or fags - then i think that to allow the rest of thepopulation including teenagers who arn't arrogent shitbags to use the shop without fear of reprisals then the classical music thing is a good idea.
i do not agree with the mosquito thing, its terrible