LOL I have them in every room, I have amazon fire tabs in the bathrooms instead of dots, utilizing Bluetooth and hard wired to in-wall marine grade speakers.
I will listen/watch TV while in the shower/bath, get notifications, announcements when people enter the house etc.
My wife and I live in a smaller house. 1600 square feet. But we don’t have an dots in the bathroom. Though I am adding one to the garage today. Just upgraded my office to an Echo Show 5" that I purchased from Amazon for $20.64 (including sales tax) after sale and discounts.