There are not so many stories to explain the question of the wedding ring. There is one practical, one naive, but also one philosophical.
It is the Chinese story that bears the strong symbolism of the family circle and the importance of individuals for the strong whole that the family is supposed to be. Watch the shared video - https://youtu.be/8K1vAW6T3oU and decide for yourself how close the symbolism is to you.
A very naive reason, on the other hand, describes that the left hand is closer to the heart and therefore the ring representing the heart bond should be on the left side.
A purely practical view is held by those who argue that, with a strong handshake, the rings push the rings into the surrounding fingers, and since we usually shake our right hand several times a day, we prefer to switch the ring to our left.