Bathrooms have a high risk of life threatening accidents and any locks should be bypassable indicators - this is why most have a coin unlock on the outside.

Many countries have regulations requiring bathrooms to be unlockable from the outside without a key, and the external doors to be unlockable from the inside without a key.

Deadbolting a bathroom is also pointless - there is nothing ti protect.

Using an effective password for dev environments is sensible; it holds no risk of meaningful loss and can prevent compromise due to a common mistake.