Why does Kelp only grow near the shore?

Kelp grows near the shore primarily because it requires specific conditions that are typically found in coastal environments. These include shallow waters that allow sunlight to penetrate, which is essential for photosynthesis. Additionally, kelp thrives in nutrient-rich waters often found near Coastlines, where upwellings can bring nutrients from the ocean depths to the surface. Furthermore, the stability provided by the ocean floor and the protection from strong open ocean currents make shorelines ideal for kelp growth.