Yes, There is no point in supplements if diet is horrible.
Have a read of that article 
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If i had a kid i would make sure they eat lots of whole foods, but no i wouldnt give them chocolate milk for “”“recovery”“”. However chocolate milk is okay but i would never promote it…
Chocolate milk is not better for you then supplements like protein powders etc. Theres nothing wrong with taking supplements. Supplements are perfectly okay for teens and can be used for that tiny edge.
Here is a quote from this Tnation article
“Is protein powder as good as whole food when it comes to improving body composition and performance?” Yes.
Since most bodybuilders and lifters eat multiple meals per day, it’s fast and convenient to supplement some of those feedings with protein shakes. And now we know it’s at least as good as whole foods for fat loss or muscle gain. So tell those pudgy dieticians to get off your back."