UV rays can weaken a damaged windshield over time, making it more susceptible to shattering during an accident

https://bravo-wiki.win/index.php/The_Ultimate_Guide_to_Windshield_Replacement:_What_You_Need_to_Know

UV rays can weaken a damaged windshield over time, making it more susceptible to shattering during an accident. Replacing it promptly enhances safety in all driving conditions