My kids (6&9) often get in the shower with me without even asking and it changes everything as there isn’t enough room for 3 of us comfortably. I love solo showers.
And bath time they usually have together also to waste time late afternoon. They spend so long playing with their Octonauts or Paw Patrol toys (possibly growing out of them now…) until the water is cold and their skin shrivelled. But they’re also so happy.