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.
Many a child has been spoiled because you can't spank a Grandma!