A lot of landline ISPs have caps at a similar level.
Unless you are a real data hog, it's a non-issue. If you are running 3-4 TVs at 4k resolution 10-12hr per day, sure, you will blow thru the data cap but with a little common sense, you shouldn't.
Keep in mind, you may want to look at using it smart. Cloud backups can be set for late night (which doesn't count toward the limit). Also, add on devices like firestick, may keep running if you simply turn off the monitor but leave the stick on and running.