Your dog jumping on strangers is another annoying habit.
It can be so embarrassing when you are out enjoying a peaceful walk with your dog. And then a stranger appears and your dog wants to jump all over them. It is one of those annoying doggy problems that just have to be stopped.
As your dog ages, their habits change for no reason at all. Other common habits in dogs that are so infuriating could be eating his own or other animals poop, always digging in your yard, constant barking for no reason and many more.