That post gave me the mental image of all the British sweets picking up and moving to Sweden sometime in the 80s. :)
My 3yo son picks up a sweet when we visit the newsagent, on the rare occasions that we do. He cherishes it all the way home, then eats it when we get here. He did it with a sour Haribo, learnt his lesson, next time it was a wrapped chocolate of some sort.
No pick and mix for me, thanks, but I'm sure I'll indulge him from time to time in the future. It was the overpriced things parents and grandparents thought were a waste of money that I loved the most when I was a child. 