Actually, the issue of chaperones was not a big issue until a 1961 WT. Teenagers under 18 were allowed to date unchaperoned which resulted in
several unwed mothers and many JCs
Thus several articles came out on the dangers of "petting" and "necking" (toying with immorality) and the need for chaperones and parents (especially JW fathers) were told their privileges were in danger if they allowed underage children (under 18) to date. There were several demonstrations at the assemblies and conventions, a vivid one at the circuit assembly in the late 60's.
Blondie (teenager during the 60's)