Sorry, link fixed. I'm just getting into this myself. I started skating 40-45 years ago, and the first time I even asked about the sharpening was just recently. When we were kids, the only thing we knew was to ask to have skates "hollow ground". We figured we should go to a skate place, not a hardware or dime store that had a skate sharpening sign (magic marker on cardboard) in the window. Outside of that, we knew nothing. BTW, we were just neighborhood kids playing outside for the most part, never played organized hockey. I didn't know anyone whose school had a team, and we didn't have money to check out a rink league. So we had no one who knew anything to teach us.