I agree with Chris Smith:
I know how 3D Touch works, I know where it’s available, yet it’s not something that comes natural to me. I have to specifically think about and force myself to use 3D Touch instead of the alternative. And the alternative is deeply cemented into my brain. I have built up iOS reflexes over the years that sometimes prevent me from making the most of 3D Touch. It’s the way iOS 9 works on all other devices that don’t have 3D Touch support.
Change is hard. From Pogo: “We have met the enemy and he is us.”
3D Touch is great, but it takes some mental rewiring to use it correctly.