Grandparents smartphone

We just bought both of our grand parents smart phones. It was really funny this week because my grandpa sent my dad a text. We did not ever think he would actually text.  He is old and more old-fashioned. The really funny part ways he asked my dad a question in the text and my dad answered. Then my grandpa replied with Ty. We were all cracking up laughing. We could not believe he texted but we were shocked that he knew to text Ty for short of thank you.  I am glad that he is using his phone and learning the text abbreviations.