I still swear by the AXE092 "Schools Experimenter" kit but I see you can only buy is as a bare board or as
five complete board kits. With 3 x LEDs, piezo sounder, LDR, input switch and breakout strip all on-board, the AXE092 kit was a great self-contained go-anywhere system which I still use from time-to-time.
As an aside, the AXE092 got me started with PICAXEs, when I was also in my 40s. I had previously worked with microprocessor systems in the 1970s and 80s and the all-in-one PICAXE microcontroller made so much easier.