Is Circus really a fun ?

Do you know the dilemma of people working in circus. They perform with smile on face but at what pathetic conditions they survive the spectators are not aware about. We just laugh and come back home.
Nowadays due to digital world this art and skill is dying. Do support circus. When they come to your city kindly go to watch it. You may add some value for the livelihood of these people.
Thanks guys.