I've never met a cat that didn't like to be brushed. Yea, I could tell he may not have been grooming. Aside that, he looks to be great. Especially for his agelong haired...so he will get matts if I don't brush him enough. Only in the last 2 years. I think he quit grooming himself as much as well. I don't think they digest hair as well as they age. Soooooo, he usually gets brushed out once a day. Luckily, he likes being brushed.