Hull protection for floating objects

[ShinyHappy]

The cargo ship losing several hundred containers had some discussion about the danger of hitting them and it has been a concern of mine for ocean sailing. I understand the low probability of such a collision, but being that it could be devastating it would seem a builder could provide additional protection for such an event.

A substantial piece of stainless covering the point of the bow below the waterline would take the impact of a hit much more effectively than fiberglass and framing. I'm thinking of 3/8 or 1/2 inch angle just covering the point of the bow.

That would take the brunt of solid impacts and allow the vessel to weather such an event. Glancing blows could still be damaging but it seems the point is lost vulnerable.

It would help even here where we dodge the tree branches floating down river to save scratching the hull.

Is there a reason this isn't done or isn't common?