Here's a cool DIY idea for a cat enrichment toy. Glue together a group of toilet paper rolls inside a tissue box and randomly fill the tubes with treats. Your cat will be stimulated when they "hunt" for a treat. So simple and inexpensive.
Therefore, it will matt should youn't groom them regularly. It may happen for assorted factors. It is also contingent on if it's one-ply or two-ply. It isn't glamorous, it's not exciting and it's painful more often than not.