The pros of having Sasha in gymnastics:

She is learning how to take part in organised activities
She is learning how to interact and take direction from another adult
She is becoming more agile, more aware of her body's capabilities
She has loads of fun

The cons:

She has learned how to climb into her brother's crib. Where I found her this afternoon during/after Dylan's nap. The look of fear on his face..priceless. The look of achievement on hers..priceless too. Poor Dylan...his last line of defence..the crib...gone. His only hope is to learn how to run..fast.