Some years back, there was a place we used to live in Lagos, it was close to some bushes. During the rainy season, it would be as if someone unlocked doors and these snails would be everywhere. Big and small. the small ones were the ones that came out, but we had to go deep into the bush to hunt for the big ones.
But we never sold them though, we used them to cook after washing them.
Thank you for sharing this with us.