Well, she's not quite 5, and doesn't exactly have "goals" in life at the moment. She just lives day to day, not really a goal setter at this time.
Her parents (my wife and I) did have a goal of having her learn to swim in swim lessons. That's the point of taking the lessons. It's just not 30 minutes twice a week to splash around in the pool.
Ski lessons are different. I think that the point of ski lessons should be to learn how to put your skis on, how to navigate from the top of the hill (big or little) to the bottom. By navigate, that can include any method. And it should involve some learning about etiquette regarding standing in line, how to get on the transportation device to get to the top of the hill (magic carpet or chair). Nothing big at this age but the basic mechanisms of skiing.
We'll see. I think we'll try it and see how it goes.
Did she enjoy the swim lessons? If so, you are ahead. Obviously no 5yo has a goal besides having fun and not wanting to be scared when doing something new and different.
I was finally willing to take a swim class in first grade. Wouldn't go near water before age 5. But was scared to death during that beginner class most of the time. The memories are very clear. It was in an indoor pool in a big city. Think I went for a 2-3 sessions. After that, I didn't really have a swim lesson until I went to the first summer camp, where swimming was in a spring-fed lake . . .cold! Didn't really enjoy being in the water until I went to a camp with a big outdoor pool with relatively warm water.
I have relied on ski instructors to pick the most important skills that young kids (ages 4-6) need to know to be safe and have fun. So far, that's worked out pretty well. Some of the kids I know well have loved skiing from Day 1. Others needed more time. Try not to overthink as a parent. One advantage of being an older parent is that I had far more patience when my daughter was a pre-schooler than I would've had a decade or two before (50 when daughter was 6). My parents were older parents, so I had good role models.