In reality those girls probably make a once in a while pretentious showing at their mother's Kingdom Hall.
Since they are not baptized and are not regular attendees, they get a pass over, most likely out the intensional endeavorer to encourage
the girls to become full time JWS., bringing with them their celebrity status and wealth.
Using Prince as an analogy you can see how the organization treats celebrities differently, preferential treatment as it were.
JWS love celebrities for it gives them public notoriety, similar to how the Scientologists exploit their celebrities.