When you own your own children's etiquette business, you can hold classes almost anywhere and you can start making money right away.  It's a service business, so there is no overhead or inventory.  There are many locations in your city that you can hold classes and reach the children in your area.

The following is an example of how the finances work for an after-school etiquette workshop where each class is 1 hour in length. 

Teaching 5 days a week, 15 students each day:

75 students @ $45 each = $3375

Supplies:                         - 200

Your profit:                      $3175                           

Teaching 3 days a week, 15 students each day:

45 students @ $45 each = $2025

Supplies:                         - 120

Your profit:                      $1905

Teaching 1 day a week 15 students each day:

15 students @ $45 each = $675

Supplies:                        -  40

Your profit:                     $ 635

There are other venues to hold classes.  Restaurants, churches, sport teams, boy and girl scouts etc.