Checking into the second thread.
Have been really enjoying these threads. I was a big fan of the books as a small child in the mid-late 80s, and came back to them in my middle age.
As a child, I'd have one or two of the books twice a year at Christmas and birthday, plus my friend's mum (who may be here!) generously lent me her copies. I have enjoyed some of the continuity errors being pointed out here (e.g. Biddy O'Ryan's name change, slightly random ages of the triplets) because I had always thought that the difficulty was that I'd only read a fairly random selection of books and in a completely random order!
And also that the things I thought were odd as a small child (eg the Robin, only a year younger than I was when I started the books, seeming more like a 3 year old; Jo having a zillion babies in quick succession like noone I knew, etc) and put down to the unknowable oddness of the 1920s or the adult world (or just Jo being wholesale, which again I didn't really understand) were in fact extremely weird!
In retrospect, 7 was maybe a bit young to start the books - although perhaps if I had known a few words of German or French it might have been easier! It took me a long time to work out which meal was which, and I never had any idea how to pronounce them (I always read a-BEND-asun). I'm guessing, though, that this was a pretty typical age to start reading?