Actually we got along just fine without the overt sex scenes back until 1968 when in the anti-violence hysteria, movie companies said they would “police themselves” with a joke of a ratings system. After that they reshot scenes to add blood and guts along with lots of total nudity to grab the coveted “R” rating.
Soon movie posters were proclaiming their movie was ...”SO BOLD IT HAD TO BE RATED “XXX”!
The novelty may have worn off by now.