I have an older elementary child, and not yet. That's because I'm still directing wash-times or else the might not happen, and we're all too busy to be monitoring shower time in the morning.
I remember taking showers in the morning in middle school (for me that was 7th grade) when I deemed it personally important to "do my hair" (<-- note the quotes

) and sometimes shave my legs. Sigh. How great it would've been to be able to choose the greasy-grody look as a tween/teen girl.
...As I do now, as a middle aged work from home person who also exercises mid-day and might not take a perfunctory shower until... well, the next day.

Sweet liberation!