Also there was no need in Italy and Greece. Britain invented steam engines because they needed a better way to pump water out of their mines, people worked out later that they could use these engines to power a cart, a digging machine, a rail machine. They needed mines for heating fuel due to the cold climate, they needed coal fired heat for their metallurgy

You need reasons to invent stuff (necessity is the mother of invention) and you're not going to get much reason in a perfect climate with all the food you need coming from the sea and land all year

Britain already had rails for human and horse drawn carts