Depends what 19yo you're talking about. If it's an overweight or gormless looking baseball cap wearing type with a create of Stella under his arm then I have all the confidence you can drop him
Not if I myself am a overweight, gormless looking baseball cap wearing 38 year old with a crate of Stella under my arm I couldn't, haha!
I do take your point though, and not all younger cyclists can sprint away just because they're younger. There is a tactical side to raid racing that people can only get from experience.