While I agree that there is no real use for gigabit for the average person, I disagree that rolling out gigabit everywhere is pointless.
For anyone who wants to use the internet for more than the consumption of content, the old upload speeds were a significant barrier. Gigabit, and especially gigabit upload speeds largely removed those barriers.
Symmetric gigabit in every home has taken away a bottleneck for people who want to, for example, run a bandwidth intensive internet business from their home. It provides people with opportunities they might otherwise not get.

top 50 comments