We gave my grandma an iPhone when she was 80. I learned a lot about her from what she started watching on YouTube.

We gave my grandma an iPhone when she was 80. I learned a lot about her from what she started watching on YouTube.

The author's grandmother discovered YouTube.Courtesy of CHIN-TSUMy grandma got her first iPhone after a brief health scare and became hooked on YouTube videos.She slipped farther away from the family store, old friends, and the dinner table.Seeing her blush at silly romance videos made me realize that she wasn't wasting time.On the day my Taiwanese grandma A-Ma turned 80, she complained about a lingering dizziness. When she got up from the floor…