Yes. But its so quick to set up a paypal account, I would recommend asking the buyer/seller to set up one.
      Answer1:Yes, for the buyer it will be secure using their debit cards or checking account per seller it is secure to get your money from the buyer before sending the goods.
      Answer2:First of all the seller will have it noted that they accept paypal payments. You as a buyer have to have a paypal account.
      Answer3:Yeah unfortunately, also keep in mind if you are the seller you will lose a portion of what you receive from the buyer as a charge from paypal so they can make their money
      Answer4:YesWell not neccesarilyReceiving money on paypal is free if the recipient has a Personal account with PayPal. A Personal account cannot accept credit card payments. To receive a credit card payment, the recipient must upgrade to a Business or a Premier accountNow if the seller has a paypal account a paiid one than they can be paid using a cc instead of having need a paypal account.I hope I helped