Why Do We Prefer Automation Testing Instead Of Manual Testing?

In manual testing test cases are executed manually without any proper support from relevant tools. However, for automated testing, test cases are executed with the assistance of one or more appropriate tools. Automation Testing is also more reliable as there is less chances of human error. In manual testing we have to run test cases manually every time based on our need, hence it is time consuming. However, in
automation testing once scripts are ready we can run the test cases any number of time with different combination of data with minimal time.