Furthermore, much of home entertainment is streamed these days. I imagine introducing 60 fps on top of 4k would increase bandwidth requirements beyond what many consumers have access to. It may also be more than Netflix et al want to pay for, so one imagines they'll want to tack on a surcharge as they did for UHD.
Yes, more frames means more data, but it creates fewer problems than the 4k/UHD upgrade everyone willingly goes through, while doing more to increase fidelity.
I looked for 1080p screens when I last bought a TV and couldn't find any. 65", and wanting fairly quality, but no 4k sources so why do I need 4x the pixels? (Sadly, the week after I bought what I bought, I happened across some 65" new in box Plasma TVs at auction... Oh well)
There's nothing new that has to be changed to support this, most of the content people are watching is already HFR.
It's only the narrative based shows that try to be "cinematic" which are at those low fps rates.
But the technology is there, it works just fine.
Today there are no technical problems or impracticalities with high frame rates, and modern cinematography is hitting the limits of what you can do with 24 fps (and sometimes crossing them). 24 fps has become a local maximum because that's what we've done for decades, but it is also a blurry mess.