Why can't my iPhone 4S send pictures to noniphone users?

I can send pictures to people with iPhones, but I can't send pictures to people without iPhones, such as droids. This Is really frustrating and my mms, SMS, and cellular data are all turned on. I just can't figure it out.

IPhone can't send pictures to others phones directly, you need to use computer as the intermediary or use e-mail.

I send pictures all the time with no issues. You may want to ask your carrier if they are having problems.