Questions about the many choices of production

1: Is scout shrine a good way to start after your warrior for an early pantheon?

2: why do people build monuments

3: if I have wine and gold in my borders, should I rush calendar and mining asap?

4: when going for a do I action victory, what techs do you generally go for in each era first and why?

5: When is a good time to build a worker and settler and why

6: when you have several tiles that you can work, is it better to work the luxury, strategic or food tile first.

7: if you have a river through your city, is it ok to aim for a water mill

8: how do you justify which type of victory to aim for

9: what should you build on a second city

10: when and why do you build wonders