Why do wedding attendants wear the same dresses?

It was stated that under the Roman law, 10 witnesses were required to make a wedding legal. To confuse the evil spirits that lurked at the altar, several witnesses dressed exactly like the bride and groom. Another reason: In Europe, it was common for the bride, groom and all their friends to walk together to the church. Afraid that someone would spot the happy couple and put a curse on them, the groom’s friends wore clothes almost identical to his, and the women dressed themselves like the bride, in an attempt to trick evil wishers