Yes, by all means adopt a seven year old. We adopted an eight year old black lab. She was in rescue, I think she is a pure bred. Her owner had to go to jail for 90 days for DUI. He stopped at a dog rescue place run by friends of ours. He had two dogs, the other was adopted quickly. Our dog was in a friend's garage. Their dog would not let her in the house. I did not know they rescued dogs. They brought her to us, it was a 60 mile drive one way for them. I thought that was so nice. She has been such a delight, spoiled rotten, sleeps a lot but when my wife gets home she goes nuts. That's because my wife spoils her even more than I do. Senior dogs may may not live as long, but all the time with them is quality time.
Oops sorry folks, I did not see I already replied to this thread. I cannot cancel the latest one.