different reasons:
most girls who applied are looking for jobs. they've got a job elsewhere, or about to have one, but want to earn extra during free time.
one young aussie girl said she'd bored of normal jobs and want to try something new
one 40yo aussie want to try, she likes dating and hang out with men
some girls have beginner level english so I guess it's not easy for them to get a job.
Most girls have jobs such as working at restaurant which pays like $22-$27/hour which is little