[JamyDev]

Here in Belgium they do the same, if you have one of their new DOCSIS3 modems it is activated automatically. Although their hotspots are for their customers only. If you disable it on your router you can't access other people's hotspots. The speed is limited to 1Mbps per user so it wouldn't impact you much, knowing that euro docs is can go up to 300 Mass (if not higher)

Personally I love it, it's perfect for when you're at a friends house and want to check out something real quick.