Most all home internet is capped now but it's usually between 200 and 300 gigs. Why in the world is yours 30?
The world is a big place, with different countries and different ways of life...
Many places have low data caps and painfully high (i.e. gouging) bandwidth fees. Canada is one of those places. I love my country, but we basically have a monopoly on internet providers (well, a "monopoly" run by a small number of companies) so they can shaft us extremely hard with low data caps and outrageous fees.