I gave up my bike for family reasons, but I will never forget the words my dad told me the day I got my motorcycle.
"Son, every single driving person is a Homicidal Maniac with the sole purpose of running you over and killing you...now ride like it."
I was fortunate, because even people who take all the safety precautions, and truly do know how to ride safely (Bruce Rossmeyer...R.I.P.) still get killed on the bikes.
I love to ride, but other people make it dangerous. In a world of all bikes, there would be MUCH fewer fatalities. However we live in America, and the car still reigns supreme. The motorcycle is an awesome way to get around, but you are not protected, so it's a heavy gamble.
My prayers with your family, I hope your nephew recovers completely.
-Dan