Windshield Fluid

All my cars are using the windshield fluid from Costco. The brand is called Laurentide -45°C Windshield Washer Fluid, it contained IPA, isopyopyl alcohol.
Are they safe to use?
Please advise, thanks.
As a youngster, my mom used vinegar to wash windows. Thought I'd try it in my dad's windshield washers. Don't ever do that. Vinegar corroded the entire system. He was not happy.



