These two radicals 礻and 衤are very similar at the first glance, but they are absolutely different and have nothing to do with each other.
礻示字旁
礻, originally a stone table for sacrificial offering, serves as a radical to express meanings related to spirits, worship, temples, religious activities, etc. Examples:
礼、祖、祝、神、视、福、禅、社、祸、祥、祈、祷、祁、祠、祀、禧、
禄、禊、祚、祗、禗、祴、禎、祪、禌、禯、祫、禙、禇、祵、禰、禔、
禮、禕、禭、祃、禷、祍、祜、禠、祓、禱、禓、禛、祅、礽、祩、禚、禣、禖、
衤衣字旁
衤, originally a garment, serves as a radical to express meanings related to clothing. Check the component 衣.
Examples of characters of the radical 衤
被、初、褐、褂、衫、袍、补、襟、裕、裤、衬、袄、裙、裸、袖、袜、袱、裆、袒、褪、褴、裨、襦、褛、裱、褥、衿、襜、裉、袂、裲、裺、褃、裪、襠、裯、袚、襱、襌、裼、衸 褘、襓、袿、襀、襸、袔、襼、袸、褖、袢、袥、袘、袴、襎、褔、褓、裃、袗、裷、衲、襂、衹、