I was 13!!!!
Some things have changed so much whilst others not so. 8mph in the centre of many large towns at certain times of the day is still a totally unrealisable dream !!!!
Look at the construction sites, not a hard hat, steel toe cap boot or a fluorescent jacket in sight.
As for design standards on the motorway itself, no central reserve barrier, no impact protection for bridge piers or abutments. The hard shoulders are of minimum construction and not a piece of armco to help prevent errant vehicles from careering down embankments ......... all of this and no speed restriction!!! Oh, and of course 'one for the road' was simply the done thing!!!
Freer times, but not, I think, the good old days!!
Andy