School uniforms contribute to the sense of school unity  Schools that have a uniform often say that they do so because wearing a uniform helps their students feel a sense of unity and pride in their school (e.g., Sacred Heart Catholic School, 2010)[15]. The headmistress of Fulham Cross School in London, England, has been quoted as saying that introducing a uniform at her school gave students "an incredible sense of pride"; after the introduction of a school uniform, GCSE passes at her school rose from 42 to 53 per cent[16].  This sense of unity is especially important on school trips, where teachers need to be able to tell which children belong to their school, so that no one gets lost.