Before the steam engines were created people had to walk every to trade and travel. After Steam engines were created it helped people trade and travel anywhere. Also, it helped move goods produced in mills and factories to consumers.
Pros about steam engines: It could use any combustible material for fuel, it could be located any where since water was heated in a separated boiler to produce steam, and it is more powerful than a Wind-mill or Water-mill
Cons about steam engines: It was unsafe to use its boiler can burst, it was not very efficient, it cannot be started at a moment’s notice