I hear this all the time.
In passing, on Facebook, from clients.
It's fine he/she is a puppy, they will grow out of it.
This is just ridiculous!
The puppy is stealing things....He'll grow out of it.
The puppy is jumping up.....He'll grow out of it.
The puppy is running off.....He'll grow out of it
Anyone who has done any sort of training with me knows if a behaviour is rewarded it will be repeated.