Meeting Old Friends
Throughout our dog's life, (s)he will have become friends with certain people and certain dogs (or other animals). Naturally, if you've moved a lot or locked your dog in the yard, this will be few. But if you've mostly lived in the same place and you walked your dog off-leash a lot, then your dog likely has made many friends. People and animals (s)he likes a LOT.
Now, if say you're always on the phone while dog walking (like one of our neighbors!), you may not know all your dog's friends. Conversely, if you have been an interested, observant, and considerate dog owner, then likely you know exactly who is your dog's friend, and who is not.
Whichever the case, our senior dog will appreciate a LOT LOT LOT when we give our dog the chance to meet those friends. As said, dogs are conscious of time and also they feel they are getting old, and meeting old friends brings joy into the senior dog's life! The more, the merrier. Not all friends at once, but a couple every day is well worth the effort to arrange for these "meetups" - a few may need to be arranged, but most we will meet coincidentally if only we give our dog the same freedom, walks etc as in younger years.
This joy of meeting old friends we should never withhold from our senior dog, say by cutting the walks short, choosing entirely different routes, moving to a different place, or even giving the dog away at old age. All of that makes it impossible that our older dog can meet and greet all the dogs and people (s)he got to like so much over the past years.
If you want, you can even consider it a treat to meet old friends. You treat your dog. Older dogs are much more after these kinds of treats than after food treats! Try it out, compare the two, and see what makes your dog happier.
Please see also our old dog remedies. There may be something there that is just right for our senior dog now. If we don't spoil our senior dog, then who we gonna spoil?
Note that every key point raised above you can find more comprehensively explained in other places on this website. The menu is your friend. Here, links have been omitted only to keep this decision tree straightforward.
PLEASE NOTE: Posting a fragment of your overall dog problem in the comments below is not going to help. Provide complete details if you really seek the right solution. Of course we have a page for that as well: Dog Problem Consultation.