My 3yo Australian Shepherd still pees whenever I come home and would cheerfully greet him. Or if he sees anyone 'strange' and gets too excited anyway, even if they aren't too cheery. At 1yo people still told me I should be patient and he should grow out of it, Same at 1.5yo. at 2yo I just figured he's just really slow with it. (He was also really slow with peeing in the house in general compared to his 4yo 'brother', also an aussie). so now after all this time I'm wondering if I should still be patient, Learn to live with it or start worrying about it concerning his health maybe.