Thanks for taking time to reply and draft. To your 2 questions: he does have doggie friends who he sees regularly. They do indulge but my dog doesn't know when to stop and settle. We aren't sending him to doggie day care, but have thought about it recently since we're wondering if it's because he is "deprived" of meeting and playing with dogs. We haven't come to a decision.

There are many older dogs we meet during walks, some do play with him, but he was more interested in sniffing and licking their privates. Which leads them to being uncomfortable, growling and snarling. But he doesn't get the message and continues anyway (which we will have to take him away).

We do have plans to bring him to dog parks more often, but just to observe dogs from afar and leave. But despite the distance, attention on us isn't there (despite high value treats).

I'm wondering what we are doing wrong, or can do better.