If a parent is worried about something like this, then wouldn't it be smarter to go for a phone that has no image sending/receiving possibility? Or if they are

If a parent is worried about something like this, then wouldn't it be smarter to go for a phone that has no image sending/receiving possibility? Or if they are no longer available, shouldn't there be a parental control of a white-list of contact numbers that can show more than just the text in the message? This automatic filtering seems like a slippery slope.