I use my home connection for VPN access remotely. I back up snapshots of data every day. I like to be able to download games and Linux ISOs practically on demand. I work from home and often enough faster speeds can avoid several minutes of additional waiting in a day.
This connection is shared as well. My partner relies heavily on cloud syncing. We both like to stream 4K HDR video. I like being able to get devices updated and ready to use with minimal time spent waiting for downloads.
I also live in NZ, where multi-gigabit fibre connections are often cheaper than what Americans have to pay for a fraction of the bandwidth. It’s not a notable financial burden or anything, and it’s not like we have data caps to worry about. It’s very much a situation where the use cases naturally find themselves once the option is there.
Also, 25/10 Mbps is painfully slow for a shared home connection in the modern day. There’s videos on YouTube that can push a higher bitrate than that. The absolute slowest plan that my ISP even offers is 100/20 Mbps for about $35 USD per month, while the most common/baseline plan for most households in NZ is 500/100 Mbps after the fibre carriers continued to increase speeds at the lowest tiers.