1: True, but that doesn’t mean it’s not fit for older people. G usually means “for everyone”, but that mostly includes kids.
2: Because it’s an everyone movie.
Because movies have budgets. If everything was good, it wouldn’t seem so good without the bad things to compare it to. If everyone was a multimillionaire living in the Bahamas, it wouldn’t be as special as only you living like that.
Because it’s mostly targeted towards kids. If it had to make sense, then it would remove the humor, the vibrant-ness, and the vehicles wouldn’t talk at all. It’s not really an animated movie without that special cartoon logic.
Talking cars and planes are what makes the movie, well, itself. Without them, it won’t appeal to most people due to just being flat-out boring. I have a feeling you’re just looking for an argument now.
G rated movies. The lion King, that's obvious. Monsters inc. Cars. Aladdin. A bug's life. Toy Story. Beauty and the Beast. All of these are g rated. All of these are meant to have mainly child audiences.
There's a reason why they call Dusty Crophopper's model an Air TRACTOR; ALSO, NOTE HOW A REAL AIR TRACTOR LOOKS A LITTLE DIFFERENT FROM DUSTY CROPHOPPER (THIS IS AN AIR TRACTOR)