> Even when I live with others, we aren't worried about bathroom noise.

I think there's a specific target customer that would love this. I'm in the same camp you are... I couldn't care less. When it's just my wife and I at home it's pretty rare that we close the door even.

In university though I had a roommate who was absolutely paranoid about people hearing her in the bathroom. She would generally run the faucet the whole time she was in there to mask the sounds. Sometimes... I think she'd even run the shower; I don't know this for sure, but I'd hear the shower running in the bathroom for a while and she'd come out looking just as un-showered as she had when she went in.

> However, I'd love this as a general device. I get home and it auto plays music , etc

You can do this with most home automation systems today.

You know darn well you aren't the target market for this device, and you know darn well that there is a target market for it as well as why it exists, so you're being disingenuous when you propose talking to oneself as the only possible reason for it.

Can you imagine that there might be people who are different from you in this respect?

This device has potential to sell millions, it's just going to have a bunch of really weird use cases.

As a seller it's none of your business what end users do with your device as long as it's not a safety hazard.