There could be several reasons why your WhatsApp profile picture cannot be seen by your contacts.
It might be that the person hasn’t added you as a contact, so they would not be able to see your profile picture.
Alternatively, you can try restarting your phone, updating the app, or even reinstalling the app altogether.
You could also check if you have granted WhatsApp permission to access photos/storage and contacts, as it won’t be able to show your profile picture to your contacts if you haven’t.
Another solution is to clear the cache on the app, as this will remove any temporary files that may be causing problems with your profile picture.
Check if you have accidentally blocked the contact because people you have blocked cannot see your profile picture.
On Android, open the app and press the New Chat button in the lower right.
Tap the three dots in the upper right and press Refresh.
Select the contact in question once the list is refreshed; you’ll be taken to your chat window.
Ask them whether they can see your profile picture now.