To get this out of the way:  I don't know what I'm doing.

I watched a tutorial on how to make a cold storage paper wallet from Bitaddress. 

Seems pretty simple, but because I'm unsure of many things I was hoping someone can clarify some steps in the creation
of a cold storage paper wallet.

1) why is it generating 7 wallets when I just want one? Is this just an option or is it saying I'd be foolish to just have one??

2) Once I create the offline wallet on Bitaddress, do I now send coins from other wallets to the new Bitaddress?  if so, I don't understand how coins can be sent to a wallet that is "offline."   What am I missing here?

3) The tutorial says it will generate my private keys for me. Does this mean I don't have to come up with my own password, or is there another step that wasn't explained int the tutorial?

4) On the Bitaddress website it says I can check my balance on the block chain by using my address.  So I don't need a password to look at my balance?

5) I heard a rumor that Macs aren't safe to generated wallets on. Is this true?

Really appreciate anyone's help with these questions.  Thank you!