Originally Posted by
watercooled
The thing with tethering some people abuse it. Like, really abuse it, and it's not affordable for the ISPs to support that.
Mobile use, as in stuff through your phone is less likely to consume huge amounts of data because of the nature of the usage. However with tethering, some people will try to run their whole house off it and download terabytes per month which both costs the networks more money than they make, and significantly adds to congestion in the area around those users.
I think the unlimited mobile plus capped tethering is a pretty good option overall. It's far better than phone-only packages where you can't use tethering as a backup at all.
As usual, the few ruin it for the many.