Yes, very rude but grandpa will set her straight, I hope
I had a client in his late 90's and he couldn't stand cell phones, so I was careful not to check my phone in front of him. He did however, enjoy the fact that if we were talking and wondered about something, I could look it up in an instant. He did find that part of the phone fascinating. He would start to sing a few words to a song and when he said, I can't remember how it goes, I could come up with the lyrics and even let him hear the song on youtube.
We spent so many fun evenings going from one thing to the next. Loved that man so much and I thought he would just go on forever. So strong, vital and never lost his hunger for knowledge and we always made it a point to learn something new every time we were together. What a privilege to call him my friend. I'm rambling lol
Go ahead and ramble ..it happens when you get our age....