How does erosion affect caves?

Answer 1

Because it blows around so much that the wind stops erosion. This answer may not be right but it should be close. So look it up somewhere else.

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Assuming it was a genuine question, I offer a genuine answer rather than nonsense that is neither right nor close.

Caves except lava-tubes are themselves erosion features, the majority by dissolution of limestone by water flowing through the joints etc in the rock mass.

External erosion will in time remove a cave as it removes the land that held it.

Sea-caves are formed by wave action on the cliff.

Answer 2

Erosion can shape and expand caves by breaking down rock and carrying away debris. Water acts as a powerful agent of erosion, dissolving minerals and carving out cavernous spaces within the cave walls and ceilings. The process of erosion can also expose new passages and chambers within the cave system.