
students can be introduced to the idea of encoding whether something is true or false using a simple switch and light (or LED).

then students can be introduced to those “tried and tested” basic combinations of switches:
AND
,OR
,NOT
. 
at the point when the complexity of wiring diagrams and physical components everywhere has students frustrated…introduce the basics of Boolean algebra!
But I am definitely not an educator: I will defer to their opinion on an approach like this.