This is a basic ask. The owner of an account, signed into their Sonos system, should be able to lock the system down with a pin code, such that no changes can be made to important set up parameters.
Currently, anyone with a Sonos app on the Wi-Fi system, can change device names, eg, like room names, and mess with a system. This should not be allowed.
This would be a piece of cake for SONOS to implement, and it makes a lot of sense to do so.