Why girl scouts should have vests rather than sashes

A decision girl scout leaders make is what kind of uniform the girls should have. I am not going to talk about a tunic, as I did not have one, but I had a vest as a brownie and a sash for every other level.  (I was not a daisy because there were no girl scouts in my area in kindergarten, and when I was in first grade, only kindergarteners were daisies.) There are good things about wearing a sash. Since sashes only go on one shoulder, they are easier to get into and out of. If you wear cute clothes, they will be more easily seen with a sash as the sash takes up less room. Taking up less room may also mean that you will not grow out of the sash as quickly as you would a vest.  Also, while I don't know if I agree with this, some people think sashes make girls look more mature than a vest. However, there are reasons I still suggest a vest.

1. More room for badges. Being a brownie was very different from the rest of my girl scout experience. We had vests as a brownie and sashes as a junior. When I went to my new troop, I became a cadette and we had sashes then as well. A sash may be less bulky and take up less room than a vest, but a vest has more room to be able to hold badges. (I think we earned so many badges when we were brownies that we couldn't fit them all on our vests! A sash would have never held as many badges!)
2. Cheaper long-term. If your girl does not grow enough to need a new size, then, as said, there are more room for badges, so you will not need to get a bigger uniform as your girl earns more badges. The vest is more expensive at first, but you may not need as many vests as you would sashes. 
3. Vests hold the trefoil pin. If you wear a sash, the uniform code is to wear the sash and put the trefoil pin on your shirt rather than your sash. This will poke holes in any shirt you wear with the sash. However, if you wear a vest, a vest will hold the pin and you will not have to either wear the same shirt or have multiple shirts with holes.
4. No sliding around. A vest might be bulky and harder than a sash to get into and out of, but a sash will slide around your body and you will have to adjust it all the time. Vests stay in place for a longer amount of time than sashes because they wrap around both of your shoulders, but sashes go on top of one shoulder and they do not have much retention. 
5. Less confusion. If you wear a sash, you might forget whether the uniform is left shoulder to right hip or vice versa. If you wear a vest, you might forget what patches go on which side, but at least you are unable to make the mistake of putting it on backwards.

I hope this helps. Happy Scouting!