Yes girls are also gambling and I think its logical they are, why would they not, you even got some girls that are addicting to gambling so that is even pretty funny to be honest, right ?
They will gamble because they also want to have fun like us, however girls does not really gamble a lot than boys as they only have limited money for gambling purposes while boys has a big budget in their gambling hobbies and even money not intended for gambling will be spent sometimes.