That wouldn't bother me, she probably doesn't make a great hourly wage.
It's the jobs that ask for a tip for basically handing me a bag that annoy me.
I tip at the mom and pop Chinese restaurant I frequent even though I order online, it is a family owned business and the owner works her ass off. I want to keep it in business as it's the only one within driving distance that I like. During the early days of Covid I left a generous tip to show appreciation. I also left generous tips at the previous mom and pop Chinese restaurant I visited before I moved and they retired.
My post of the breakfast lady having a tip jar kind of bothered me, for the reason you mentioned. It's a lot of work setting all that all up and I'm sure her pay was probably minimum wage at best .
People shouldn't have to rely on tips for a living