not necessarily, if you want to get nerdy like me. my pocket EDC that i carry everyday everywhere but school consists of:
3 folding knives
one multi tool (basically only good for pliers)
one bomb proof lighter
my keys
many would add a torch to that mix.
but at the same time a box or bag you always carry in your car could be classed as an EDC and this might contain:
torch
first aid supplies
tow rope
tyre plugging kit
mini compressor
etc etc
okay now i shall leave before i bore you all any more!

Cheers Ed