I'm 13 and since my body is going through changes, I feel more comfortable and confident if I shower every day.
I usually don't shower on the weekend unless I'm going out of the house or seeing friends.
My parents shower every day too. My 7 year old sisters take a bath once a month or so, lol.
I usually take a shower in the morning, but sometimes I take a shower at night, which means that's two showers per day.
I know that water can be expensive, but my parents said that I don't need to worry about it unless I'm taking hour-long showers, and mine usually only last 15-20 minutes. (I spend a lot of time on my hair, being a girl
)
Also since my sisters rarely bathe that kind of makes up for it.