Simple regulator (7818) circuit question

Witnessed a few homes after fires because of wall warts, playstations, the old Wago connection blocks etc. and learnt the lesson that I don't want anything powered on when I am not there and also not when I am there at night. Except the TV and the refridgerator. Also that wire nuts may be old fashioned but practically never fail in time. Whatever (insurance) companies and people involved may tell/advise as it is 9 out of 10 times commercial advice.

Unfortunately standby power and 24/7 powered on SMPS are more rule than exception. It is even endorsed here as it would be safer. It is not. A real power switch is safer.
 
Last edited: