The answer to 'drip edge worn out' is that the drip edge on your roof has likely become damaged or deteriorated over time, allowing water to leak behind the edge and potentially cause damage to your roof and home. Common causes include weathering, corrosion, and improper installation. Symptoms may include visible cracks, holes, or separation from the roof edge.
The best solution is to replace the worn drip edge. This is typically a job for a professional roofer, as it requires carefully removing the old drip edge and properly installing a new one to ensure a tight seal and prevent future leaks. While some homeowners with experience may be able to DIY this task, it's generally recommended to hire a licensed and insured roofing contractor to ensure the job is done correctly and safely.