"I am assured that this was a perfectly safe thing to do, plug your iron into the light socket! Why would you even think of that as an option?"
Because that was the only electricity wiring in the house! It was done occasionally in my childhood, but then we had very few electrical gadgets. Radios were battery powered.
A lot of these things were well after my childhood, but we had the bottles of milk, of course, and I read The Famous Five (and Biggles). The magazines that were bought for me were Swift, then Girl and Girl's Crystal, but an aunt used to send bundles of magazines for me and my mother, which included Mickey Mouse and Radio Fun.