It goes against Girl Scouts to require anyone to purchase a uniform. Uniforms are not mandatory. That said, the sashes or vests are nice to display their badges. I am a former leader and I gave my girls the choice of vests or sashes....they voted for sashes, but they were not required. I had one parent choose not to get anything for her DD, but eventually her DD wanted one to put her Try-Its on and she ended up getting one at the end of that year. We never got any other pieces and honestly, they hardly ever wore the sashes anyway (only in parades)