Keeping your things safe
Chewing is a natural, hard-wired behavior and is not something that puppies generally outgrow. But we certainly don’t want them chewing on your shoes, furniture, etc.
The best approach is to give them legal outlets for their chewing needs—to teach them what they’re allowed to chew on. Trying to stamp out chewing altogether usually leads to stealth chewing, which usually means the wrong things get chewed.