I see this posted frequently (not here mind you):

"We didn't have so many warning labels when I was a kid, because people weren't so stupid back then"

However, if you actually stop to think about it, the converse is actually more likely.

"We have so many warning labels now because people back then WERE so stupid."

In my experience, you only need to warn about something after someone has done the thing no-one thought a right minded person would do.

@dadegroot it is like speed limit changes on the roads, or traffic lights at roundabouts which here in the UK often only happen *after* an area has been found to have become a blackspot for collisions or (in the case of roundabouts) the "fair play" traffic flow ideal isn't being achieved and traffic from one particular direction is dominating to the detriment of others..

@clacke @vfrmedia @dadegroot
We've had a 4 way stop at a junction of two highways for many years and are Finally getting roundabout there instead. I can't imagine a reason for placing traffic lights on a roundabout.

@clacke @vfrmedia @dadegroot This is northern canada. The highways connecting a few towns in no way resemble the M6 or the Autobahn! :-)
Still, silly not to have had one there all these years.