Here are 3 reasons why this is not a good idea:
- You have to pay an extra fee to use your smartphone as a Wi-Fi hot spot. You can tether (using a USB cable or Bluetooth) for less.
- You'll be draining the battery on your smartphone and your laptop at a faster rate if you're using Wi-Fi compared to a USB cable. If you tether using a USB cable, then you can keep your smartphone charged.
- Your friends will want to share your data connection, so that will only slow you down. We all like to share, don't we?