"It's a wear and tear issue"
But just to make you agree with me more, let me explain a bit further. Acetabular labral tears are often a result from Femoral-acetabular impingement (FAI), typically due to CAM-impingement and pincer-grip anomalies....those "bony" anomalies that I had mentioned earlier.
PS. a tear is a tear. it cannot resolve and there is no such thing as "settling down". You either leave it be or repair it.