Star Wars core audience is everyone, really. The original trilogy was an action adventure that appealed to kids, but didn't talk down to anyone, so adults had the same level of enjoyment.
That started to change a bit from Return of the Jedi onwards, where it became more kid focused. Ewoks, Jar-Jar, things like that were kid friendly and less appealing to adults.
It's a little unclear what demographic Disney is going for here. Adults with money to burn might want more of an original trilogy experience, but kids might have a stronger reaction to Rey and Kylo.
Is this like The Force Awakens, Jurassic World, or Ghostbusters Afterlife, where the idea is we're going to give you a soft remake of what you loved that you can share with your kids?
People complain this isn't the OT timeframe, but I don't begrudge Disney for moving forward. I'm sure an experience themed around a movie released in the 1970's would raise a few eyebrows. Star Wars can't survive forever if A New Hope is all anyone responds to.