I suppose that things have changed so much over the years.
Where I live we occasionally have circuses visiting but for many years they have had to be free of animals, in fact I think that they might be Chinese circuses and the one time that I went, about 20 years ago, it was just acrobats.
I only went to a 'traditional' circus once or twice in my life but as a child I didn't realise the probable cruelty which took place.
It was interesting to note in the article about children hardly being able to sit still for 12 minutes, how times have changed.
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Many a child has been spoiled because you can't spank a Grandma!