Given your goals for DD, I would pick the closest indoor tennis program to home or school. Don't overthink this.

If JTCC is closest, I'd go with them. They have a great pathway of classes for kids that are not super competitive. You can call the front desk and they will probably set up a time for your DD to be evaluated to see which of the classes she fits in.

Our kid is much younger and I’m sure that makes a big difference but the vibes were very chill. I had the impression they have multiple tracks, but I don’t know what age things kind of get intense for everyone? But anyway for little kids, very fun and mellow. But reasonably organized/structured.

it'll be intimidating for her. it'd be like going to europe soccer academy for rec soccer classes

just go anywhere if not serious about tennis. It wont matter.

I know JTCC has a great reputation, especially for high-performance training, but I’m wondering if anyone with kids who aren’t super serious about tennis has had a good experience there? Is it still fun and welcoming for more casual players, or does it mainly cater to kids on a competitive track? My middle school daughter enjoys tennis but our county rec options aren't great, just looking for something to keep her active in the late fall/winter.