Macaydia
Wait a minute...I'm sorry to say but I think him being elderly and being a small dog, he is going to widdle on your rugs and the sides of your sofa. Keep a crate with a closed door and let him out to do his thing and then let him be free to socialize afterwards until you are sure he is house trained otherwise he will do it when you are not looking and it will be costly to remedy the damage.
The breed can last to 20 and commonly reach 15.
8 is not "elderly" and OP has already said, the dog is housetrained.
My 12 yr old dog is perfectly housetrained and so were all our previous dogs, right up until their deaths around 14/15.
They would never dream of cocking a leg on furniture



