What is the ruling on a ten-year-old girl praying in the first row with men?

It is not permissible for a ten-year-old girl to stand in the first row with men. Rather, she should be treated like an adult woman, because she is a potential object of desire. The Prophet, peace and blessings be upon him, married Aisha when she was nine years old. Her standing in line with men is not permissible for fear of them touching her. It has been reported that it is more dangerous to look at or touch the 'awrah (private parts) of a six-year-old girl. The Prophet, peace and blessings be upon him, placed Anas and the orphan behind him, and the old woman behind them. This indicates that women stand behind men. Furthermore, touching a non-mahram woman is very dangerous.