Is that how you can drive? Bzw. could this have been caused by an accident damage?

Hello you out there, and I bought a Ford Escort 1.8 TD year ́97 from a dealer about 3 months ago, and today I looked carefully and saw that the upper bracket, from the driver’s belt somehow has cracks in the plastic, and now I would be interested, can something like this come with the time or was there an accident in the game? Furthermore, I am a bit worried now, and ask myself, can I drive so at all? I get irritated that the H aging at the passenger seat still looks like new so no cracks or the like at the driver’s seat but the same on both sides as you can see very well with the attached photos. Would be great if someone could help me. Greetings Tobi