I just moved to the UK from the US. The concept of sending people money via PayPal is more or less non-existent within the country. Why? Because you just get someone's bank details and transfer the money. I pay all of my bills via bank transfer. Oh, and it's free. It astounds me how easy it is to do. From Barclay's to HSBC for example (I pay my flatmate this way) it transfers it almost in a few hours.
Why can't the US do this? Too much money in it for the banks?