Just because H. habilis was several branches back on the family bush doesn't mean we're supposed to stop being handy.
I get not carrying a pistol. It's not for everybody and, if done with any level of seriousness, demands certain commitments and obligations that not everyone wants to undertake, and that's cool. It's still (mostly) a free country.
But how do you go through life without a flashlight and some kind of knife? Our most primitive ancestors carried sharp rocks around with them. Hell, carrying a sharpened rock around in case of future need is basically how we tell where the apes stop and the people start in our fossil family album. If they could have carried a light around without it burning their fingers or going out all the time, you bet they would have.
They make flashlights and knives small enough to accommodate any code, dress or legal, up with which you have to put.