The PG-13 rating isn't necessary

I honestly don't see why we need a PG-13 rating, I think PG makes it quite clear: PARENTAL GUIDANCE SUGGESTED as in "THERE MAY BE THINGS IN THIS FILM THAT YOU EITHER DON'T WANT YOUR KIDS TO SEE OR YOU SHOULD BE IN THE ROOM WHEN THEY ARE WATCHING IT"!!!! Such as in Titanic there's a scene where you see Kate Winslet's boobs, or in Edward Scissorhands there's a scene where a character gets stabbed and is pushed out a window, or in Interstellar there is a scene where a character uses the word "fuck".

We only need 4 ratings:
- G - Not 100% clean (not exclusively a kids movie) but not enough that warrants parental supervision (2001 A Space Odyssey, Planet of the Apes, It Happened One Night, Despicable Me your typical Disney Film). Includes all current G rated films and the lower half of PG
- PG - Parents should be warned there may be inappropriate content for small children (Jaws, Edward Scissorhands, Indiana Jones, James Bond, The Dark Knight, your typical superhero movie, Harry Potter, etc.). Includes all PG-13 rated films and the upper half of current PG
- R - Restricted (Rambo, The Terminator, One Flew Over The Cuckoo's Nest, Silence of the Lambs, your typical Gangster film)
- X - No children at all under 17, over the top graphic violence or sexual acts (A Clockwork Orange, Cannibal Holocaust, Human Centipede 2 and 3, Wolf of Wall Street, Boogie Nights, the original cut of Robocop, porn)

Raiders of the Lost Ark , Jaws and Temple of Doom DO NOT need their own separate PG-13 rating, they fit well within the guidelines of PG.

Some parents are just stupid, including the ones who brought their kids to see Deadpool and then complained about the explicit content (It's rated R you morons).