You don't know this. People come and go in the square, and aerobics is very aura! Everyone will be crazy and will strongly want to show their image of doing exercises. In everyone's eyes, it's much better than dancing at home! Generally, before or after doing exercises, there will be music playing in square dance, so that everyone can choose freely. You should support the elderly to go to the square to do aerobics.
I hope I can help you.