What if I pick up a wallet on the ground and pocket it.
That does not seem smart. Do you think pocketing it is the right thing to do?
I think if a wallet is on the ground then it's okay to take it.
If you find a wallet on the ground you shouldn't pocket it, you should try to find the owner. Keeping a wallet you find is just as bad as stealing because it isn't difficult to track down the person it belongs to.
I really like that wallet and it was just sitting on the ground. I'll take it.
If you like the wallet just buy a similar one, don't take one that belongs to somebody else. People will still consider it stealing to pocket instead of trying to find the owner.