The younger or less experienced runners are way off, believe me. I've seen too many 16 y/o get on a treadmill at the pace they say they always run outside and the HRM is flashing just under 190 bpms.
I do believe you, though I am unsure that teenagers really use treadmills in high numbers nor that they necessarily should. As indicated, even college runners in Minot, ND, trained outdoors through the winter. The only time I did not run outdoors in college was during the rare wind/dust storm that carried a realistic threat of eye damage. High wind is likely my least favorite weather condition in which to run, snow and cold seems like nothing by comparison.
true. I saw one of the boys a few days ago, running down the middle of the road….in shorts :o. But school was cancelled for frigid conditions