I'd have to see the door, but if this is a flush hollow core door, well, I'm always looking for a reason to upgrade. Flush hollow core doors have no character and they would be out of the house quickly when they start falling apart.
You have some sort of damage here that you have not described so I can only guess how to repair it. Splintering veneer can be stabilized with wood glue and pressure.
Our 14 year old cord controlled blinds are all giving us trouble with raising and lowering and tilting. Many of the top mechanisms are coming unglued from the top. I ...
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Can you post a picture? Is the door painted? You could sand defect and use a wood putty filler or a bondo filler if the door is painted.
I'd have to see the door, but if this is a flush hollow core door, well, I'm always looking for a reason to upgrade. Flush hollow core doors have no character and they would be out of the house quickly when they start falling apart.
You have some sort of damage here that you have not described so I can only guess how to repair it. Splintering veneer can be stabilized with wood glue and pressure.