My son watched TFA in the theater with my ex-wife in Japan, and I got to watch it with him last night for the first time (I bought the bluray for him before coming to visit).
He’s six, and this is how he views the movies:
Darth Vader turned bad once he put his mask on (he hasn’t seen TPM or AotC, but we skipped around RotS one time after watching the originals).
Darth Vader turned good when he took his mask off.
Fin was bad until he took his mask off.
So based on the above (very shaky) evidence, he thinks that if you wear a mask, you’re bad, and if you take it off, you’re good. So he was telling me that Kylo Ren is actually a good guy when he takes his mask off. The thing is, he fell asleep in the theater right before Han Solo bites the big one, so he was all like “No, he’s a good guy, dad,” so needless to say, he was pretty surprised when Han Solo got a lightsaber rammed through his chest.
He’s also in agreement that the first 30 minutes are the best part, which I found amusing.
He also thinks Rogue One looks great.