Happysexagenarian My eldest is 33 so I guess Born in the same decade as your son, and I don’t remember anyone then still leaving babies outside shops in buggies/prams? I certainly would never have done so. but I do know that my parents generation (1960’s babies) did do this I am sure it was not common place by the mid 1980’s.
As for touching someone else’s baby I would not do this and would have been horrified if this had happened to me as a parent or recently as a grandparent.
To think that London, or anywhere else for that matter, does not belong to any one demographic