A lot of communities do things like Trunk or Treat or Mall-O-Weens to cut down on going door to door. These events usually happen the weekend before Halloween (unless it's on a weekend) so the kids stuff is done.
Like a few churches in my city had the Trunk or Treat yesterday afternoon.
Also to the OP's question it was always a holiday that everyone could enjoy, not just a kids holiday. Now the oversexualization of Halloween probably started in the 80s and 90s but ramped up more as social mores around sex became less strict.






