Yep, I moved my mom to iphone and iPad a couple of years ago. Be prepared to become her IT person . Lol I've spent countless hours setting her stuff up and fixing when there was a problem . She's now pretty much up to speed unless her IPads wifi stops working. Then it starts all over again. My favorite part is always her saying something like, can my phone get email?? I really need email. I explain she's had email all along. Then taking a screen shot of what the email icon looks like. Lol. Here is a very helpful hint. When ever u need to show your mom how to do anything on the 5s, screen shots help a lot, along with instructions. It's worth every hour spent helping her, she has the current tech and loves it. When I was having a very frustrating night trying to explain something to her again, I suggested she might wanna go back to a flip phone. She was horrified, and said I'll never go back to an old lady phone. Lol. Your mom will love it.
my mom is now a major texter at 73, slow texter, but a texter. Worth all the effort.