Absolutely! Even as a 14-week puppy, Luna dwarfed some of the other dogs we met. No elderly chihuahua wants a Labrador jumping on their head, however cute she is...
This is what I would do, and have done on occasions I see I dog I'm not happy with. Sometimes because I'm just not quite sure how H will react to certain dogs. I'm quite nervous of white short haired dogs especially bull terriers.
When Tilly was a small puppy, we had a friend with a140+lb Malamute (Kota), who generally did not really like other dogs. We still have photos of Kota lying on the ground, while Tilly crawled all over his head, even taking his Gentle Leader collar off. Tilly was so small she would have been a Two Bite Brownie for Kota, but he more than tolerated he seemed to be quite happy to have the puppy attention
