Chairlifts are heavy equipment. You really should pay attention when using the lift. Perhaps your supervisor could give you a refresher on safe lift use.
When children are in your care, you should be more careful, not less .
I ski close to seven days a week and mostly ski bell to bell. That's a lot of lift rides and bars being lowered. I get a bit of a thump a few times a week when I forget to grab the bar as my butt hits the chair. Sometimes I'm helping load kids on the Tewinot beginners chair and am pre-occupied. Sometimes I am talking with a student and forget. Sometimes I am just gaping. I like it when the person lowering the bar calls it out and waits a moment before slamming it down.