I thought this was going to be a complaint about the increasing use of pouches too and the fact that they may not be recyclable.
What is wrong with pet food coming in tins? As far as I know aluminium cans are recycled, are easy to wash out (essential) and there were recent reports that there was a shortage of tin cans resulting in shortages of some foods.
It seems to make sense to me but it may not be that simple.
What medical conditions seem more common now than when you were growing up?
Help with some diplomatic wording please
