One dumb questions! So far...

[Purpleorchid]

There are many reasons why you'd want to lock your iPad:

1) if someone steals your iPad, it'll take them longer to get into it (and for them to get into it, they'd be deleting everything on it so you're safe from reason #2...)
2) if someone just picks it up to look at it, they won't be able to snoop in your emails, websites you have saved, accounts you have hooked up with credit cards (e.g. Amazon, eBay, etc) or online banking
3) your kids can't fiddle around with it and accidentally buy something from the AppStore or iTunes (or delete something by accident)
4) etc etc etc

Sure it takes a couple extra seconds to unlock it using a 4 digit passcode, but it's a little extra security step.

 

[SweetPoison]

Now, how would I lock it again? In settings?

 

[iPadCharlie]

As long as we're sharing...

Here's my wallapaer: Kodiak is on the left and Sitka is on the right. Today is the first day of summer. They're miserable!

 

[SweetPoison]

They are so beautiful! Thanks for sharing.

 

[Purpleorchid]

Yup. Settings | General, then on the right in the middle are two settings for Auto-Lock and Passcode Lock.

Auto-Lock is for the timing on when you want it to lock. Passcode Lock allows you to turn it on and set your 4 digit passcode.