As a mostly single person at the moment I cannot realistically use the 120Mb/s bandwidth that's available down my fiber internet connection.

It's hard to see a family soak up that bandwidth up either. Better latency and jitter would be beetter for my purposes, but no-one cares about that.

FWIW, I pay dearly for 6Mb/s where I live, rarely get above 4Mb/s out of it, and can regularly consume that if some streaming video is running.