I agree, Android is particularly bad for this as well. I work with someone still using an iPhone 4 - works fine for him in that he can make and receive calls on

I agree, Android is particularly bad for this as well. I work with someone still using an iPhone 4 - works fine for him in that he can make and receive calls on it which is all he uses it for, but thanks to shoddy update support I can still send specific characters to him in an SMS and make his phone restart!