There’s a positive commandment to follow the majority of Sages. The verse that teaches this is phrased in an awkward manner – it warns us not to follow the majority to do harm: You shall not follow the many for evil…From this we infer that usually we must follow the majority. The awkward phrasing suggests that even in deciding halacha, the Torah is aware of the pitfalls of a simple democracy and so its endorsement is presented in a roundabout manner. When the Sefer HaChinuch formulates this commandment, he points out that while each person is free to have their own interpretation of Torah, when it comes to practice, there must be uniformity lest “there be destruction…and the appearance of manyTorahs.” Freedom of interpretation is crucial to the continuity of Torah but this does not translate to freedom of practice: one Torah there shall be for you.