Oof, that sucks that she didn't realize. Ankle strength can be hard to quantify. It's easy to tell how strong my arms are, but ankles? Still, with gymnastics that's not just ankles and it sucks she couldn't give you the direction you needed.
At the risk of over-explaining skating/skiing, you can stop/turn on ice/snow by pushing momentum into it. With concrete, you have to redirect momentum or push the force into your skates/legs and it's not a stable force, it's unstable so it's like a vibration. You can't control the turns as much and you can't stop on a dime. I hate it, it feels so unnatural. Also, on ice you can punch through bump with strength or speed, but on a road if there's a stick in the road you have to bunny hop over it. There are three things we call skating, but the control, body impact, etc are all very different. Roller skating is very clunky to me, and roller blading gives me a visceral sense of wrongness. Both can look fun and roller skating has the whole retro thing, and they are very much not my scene.
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At the risk of over-explaining skating/skiing, you can stop/turn on ice/snow by pushing momentum into it. With concrete, you have to redirect momentum or push the force into your skates/legs and it's not a stable force, it's unstable so it's like a vibration. You can't control the turns as much and you can't stop on a dime. I hate it, it feels so unnatural. Also, on ice you can punch through bump with strength or speed, but on a road if there's a stick in the road you have to bunny hop over it. There are three things we call skating, but the control, body impact, etc are all very different. Roller skating is very clunky to me, and roller blading gives me a visceral sense of wrongness. Both can look fun and roller skating has the whole retro thing, and they are very much not my scene.