Take my phone out of my pocket, navigate, log in using secure password, send bitcoin, wait, wait, wait, txn complete, vendor waits, waits, waits, shows up in blockchain, waits, waits, waits, waits, confirmations, leave store 15 minutes later.
Alternatively - use fiat credit card, 30 seconds, out of there.
Confirmations need to be quicker as well. I understand this will come with time if more people start mining, but still - if more miners appear, more users will appear and the load will be the same.
It's 0 confirms actually.