As a enthusiast then student of electronics in the 80's, I can tell you that there has never been a better time than now for a kid to get in to electronics.
As a enthusiast then student of electronics in the late 60's and 70's, I wholeheartedly agree. I in the 70's we still had GW Smith (Soho), HL Smith (Edgware Road) (got all my Denco coils for the superhet I built from them), Home Radio (Mitcham) and still loads of ex-WD 19 sets out there. But though the kit was easily available, the information, as you say, wasn't - the "maker movement" has changed all that, powered by the internet, without which it wouldn't have happened.