Scars and scratches do tell stories, whether they are on our body or on our bikes. Sometimes the same event gives you scars and also leaves a mark on your bike.
Would I go as far as "appreciating their beauty"? More like accepting that they are there, let them remind us of what happened, and how we prevent something like that from happening again.
For some young folks it may be an opportunity to pause and think about how sometimes people do not recover from their injuries. Most of us eventually become disabled, and we still need to continue living our lives as best as we can with what we have, which is why public transit, walkability and accessibility are important to preserve.