More and more are making walls between the platform and the station both to prevent stuff like this from happening and to also help with environmental control (AC and Heating) and noise pollution. Helping the disabled helps everyone.
I love that they foreshadowed him being able to catch this guy by pointing out that Morio's actually a pretty good sprinter when he went running for the first time with Sora. And even though Shishio was pulling his punches for Morio, Shishio is 1) gigantic and 2) not the only person Black...
And this right here shows a little of why building stuff to accommodate the disabled also helps everyone else out. The clerk can move more quickly between aisles because he can see the large, high-contrast lettering on the end of it meant to aid visually-impaired people like Yukiko and grandma...
Oil is fat.
It adds calories, lots of them. Fat is very calorie dense. If you're going to be doing a lot of heavy activity, you need lots of calories. Also, most people find that fried foods taste good to them and enjoy the crunch.