One of the things Tesla needs -- and I have mentioned it to Tesla people at least twice now -- is to set up a formal, organized system to receive feature requests, feedback, and bug reports. For issues like this, we could create a "feature request" entry and then have all of us add our input to that particular entry. Other people can simply +1 it if they think it's important to them as well, and voilą... neatly packaged ideas for Tesla on how to make us all happier.
This kind of software already exists and would be very easy to modify for Tesla's needs. Something like Bugzilla is free and open-source, and just requires an investment in time to customize it. And there are other options for this.
By the way, +1 to Valet Mode, Parental Controls, and DiscoDucky.