How to set Contact Photo and Poster to Ask before updating by default

When you share a photo or name with someone, the recipient has the choice to either update or disregard the information you've provided. It's important to note that this data isn't automatically stored on their device without their explicit action to save it. This gives them control over what they want to do with the shared content, ensuring their autonomy and privacy in managing the information they receive from you.

See the pic below

The content visible on your device is a reflection of the information stored in your contact list and is not contingent on what others have individually shared through the Message app. Apple INC maintains a policy of non-interference in your device settings.

When your contacts engage in Photo Sharing through the Message app, it's important to note that they lack the capability to save those photos and link them directly to your contact details. Unfortunately, this feature lies beyond their control and cannot be altered or manipulated.

Please see the pic below which is self-explanatory.

Start Sharing:

Stop Sharing