Parents Coaching at the lower levels to produce future level 10s

[ChalkFullOfLove]

I just read a comment in an old Chalk Bucket thread that said that lower levels are coached differently when the long-term goal is to produce level 10s. I'm super curious about what the main differences are. For example, are more training hours (let's say above 12 per week) necessary at the lower levels when the goal is level 10? Do the coaches devote more time on skill progression throughout each season vs. just focusing on perfecting routines for the current level? If so, is less importance placed on scores at the lower levels? Are the drills different? etc. Thank you!