I have the similar usage to you. Cord cutter, four heavy smartphone/tablet users, remote desktop, etc. About a year ago a badly done patch-panel punch on my part slowed down our internet from gigabit to fast ethernet speeds. (Bad connection on one of the four pairs.) Nobody noticed.
I've got 3 gigs symmetric at my house, with 10-gige in the wall, and Ruckus APs that can do at 500+ mbps if using Apple products. I can't think of a way to use even a fraction of the bandwidth.
i'm not sure my demands will be that unusual, ppl consume what is available. and remote working and EVERYthing over IP is a trend just biting