But I too grew up prior to the NANNY STATE imposed helmets for everything,knee/arm/whatever pad rules,and played on CONCRETE floored playgrounds.Heck,I roller skated and rode my bike on city streets;even played games on them!But,I never heard any bad language nor saw any kind of porn either,back then,and could and did sing "popular" songs, without any fear of getting my mouth washed out with soap and/or getting a tongue lashing for using "dirty" words.
As to just WHEN this nation will back off from socialistic tendencies,which do not work,I have no idea.Neither do I know when the populaces will at last have its fill of trash,porn,perverted behaviors,etc.;but there WILL come a point that that'll happen.You and I might not be around to see it,but it'll happen...it always does.
As you mentioned earlier some riske' stuff existed during eras when you'd least have expected it. I suppose we could institute harsher censorship, satisfy the 'marms' and expect those 'underground' or black market activities to flourish beyond what we're seeing today? Perhaps in a more artful way. Won't that be nice? Bring on the romance novels! (boring)