I feel like something similar to this has been brought up somewhere around here but I can't find it...or also it could just be my imagination.

I hope this doesn't seem whiny, but I would like if retired animals could be "ineligible" to be on the "register your horse/dog" list for clubs. I don't know how doable this is, but I thought I'd suggest it to see if anyone else feels the same?

I sometimes forget (or, I'm lazy and I just don't do it) to register a generation or two of my animals to clubs. So when I finally get to registering my new generation, there's like, 40 animals in the drop down menu and it's time consuming to go through all of them and find the ones I actually want to register.  

I second ^^

I've thought about this before but sometimes I'll throw a couple retired animals into clubs if they weren't allowed to be registered prior to retiring. Normally this doens't happen though so I'm sure we'd all get over it. Realistically you don't register retired animals in RL so I wouldn't be upset to see this implemented on here.