Of coarse that's obviously true!
It's also dependent on the state of mind at the time. Charlie's newly widowed Mom is fragile right now.
Remembering when I was newly widowed and being overwhelmed with life changes, the last thing I would have wanted was yet another life altering change. At some point she may, or may not, be willing and able to embrace modern technology.
Charlie, you're quite welcome for the link of resources. I'm wishing both of you the very best.
My response was to the "vast majority" and "that's a fact" terms you used, which flies in the face of "everyone is different."
Keep in the mind, it is important for elderly people to exercise their minds regularly... that is scientific fact.
https://www.scientificamerican.com/article/brain-gain-mental-exercis/
The ability of my dad to use an iPhone, and sync it to his car at age 86 may not be a "blessing" at all, but the result of challenging his mind.
CD