I've become the designated IT support guy for my 80 year old dad, who's got a 2009 iMac and a 2015 MacBookPro.
(I'm just 52 myself).
We live 35 miles apart, too far for quick drive over when some issue arises, and I've done the iPhone facetime thing 3-4 times now, so time for a simpler solution.
Seems teamviewer is a good solution from what I've read here....thx for this thread and others.