From what I've read, the paint on newer vehicles are formulated for reduced environmental impact. Unfortunately, these newer paints have proven to be lacking in durability. Subaru's paint, sadly, has always been subpar in terms of durability. With an engine, driveline, and body that are engineered a bit different compared to most other cars, not everything on the vehicle is going to be absolutely perfect.
Simple solution is to use a hood deflector and/or apply film paint protectant on the most vulnerable parts of the body's paint. Also, if you drive your vehicle out on the road, it is inevitable that it will get chipped unless you keep your vehicle garaged and never drive it.
"Why would I want to profess my feelings for some 3D girl?" - Tomoya Aki from the anime Saekano