Today, homes have so many devices connected to the internet, and many of these consume large amounts of data in the background without you even knowing.
For example: An iPhone update can be 5GB in size, and if there is a couple of iPhones and iPads, it is 20GB++ overnight.
Other devices that will consume bandwidth without you knowing are:
Computers, Max Updates, Printer updates, phones, tablets, TVs, PlayStation, Xbox, Netflix, Kayo, Stan Fetch TV, Foxtel or TV Playing devices or records, Stereo, sound systems, remote controlled lights and switches, security cameras and WIFI calling.
If you have 2 or more people in the house watching catch up TV and/or Netflix, your Internet should be 100Mbps+ to support these services without any issue and with all those background services running without your knowledge as well.
The global entry level standard for intern in 2021 is 100Mbps Download and 50Mbps Upload (100Mbps/50Mbps)
A great Internet speed is 200Mbps +
An excellent, Internet speed is 1000Mbps