Senior dogs settle in easily because they’ve had years of learning how to get along with others and become part of a pack.
They leave you time for yourself, because they don’t make the kinds of demands on your time and attention that puppies and young dogs do.
Senior dogs can focus well because they’ve mellowed. Therefore, they learn quickly so you can teach them to go get the neighbor’s Sunday newspaper so you can read the comic’s section. Who said “you can’t teach an old dog new tricks?”