So to the original thread. YES! Pets need to have an escort command or a leash command to keep with PC. In reality your doggy is not going to be so slow it gets left behind and lost.
PET RP - I have found this to be a blast, especially if you get around other doggo's but spoofing the entire time is just meh... If we could possibly puppet our own pets (While in the same room) it would open up a lot of RP potential.
Pet LP TP SP- THIS! Needs to be a thing. For the exact same reason as we use them with our PC.
Pet responsibility- We have seen what can be done with a critterdex and I think the same needs to be applied to pets. Feed them. Bathe them. Play with them etc etc. Add some upkeep to them so they are a functional responsibility, and if you treat your pet badly I have no doubt certain judges will quickly issue some fines.
Mix pets- Because why not? You can tame a sewer rat or other small mix animal. Maybe even a stray dog... if they don't eat it.
Just some thoughts. What says the rest of you?