Pronoun

Lawyers don’t like pronouns because they (pronouns, that is, not lawyers) tend to be shorter and more idiomatic than repeated use of the nouns to which they (the pronouns, not the nouns) might, if they were used, relate.

The official excuse has probably something to do with imprecision: “you” and “it” can ambiguously refer to the subject or object of a sentence: unlike those ultra-precise Germans, we Englanders only half-heartedly decline our pronouns. For all that, the Engish language — complete with pronouns — works unambiguously well in most other linguistic contexts. Besides, Lawyers have their own special form of pronoun - the definition.