A 90-year-old woman is in the spotlight over her obsession with video games. Hamako Mori from Japan is also in the Guinness World Records books for being the world’s oldest Youtube gamer. Hamako Mori, known as “Gamer Grandma” to her over 400,000 YouTube subscribers, started gaming 39 years ago. Her YouTube channel launched in 2015, and she posts up to four...