I saw two female lifeguards July 13 protecting swimmers at the b

Court House - I saw two female lifeguards July 13 protecting swimmers at the beach. At the risk of sounding "sexist" (and I am female myself), shouldn't there be a male and female working together? Very few females have the upper body strength that a male has and the lifeboats are heavy to launch and need to be rowed against waves as fast as possible in the event of an emergency when seconds matter. This just seems like common sense to me.