See also Artistic Age for an intentional drawn equivalent.

Cross-Dressing Voices is more-or-less the animated version of this trope, as partially explained above. In "How to Draw Comics the Marvel Way," "Drawing Comics in the Style of Detective Comics Comics," "Aping Shit the Valiant Way," and every other drawing tutorial I've been a part of, it clearly says that every line you draw on a person's face adds to their age.

Dirt bikes, cafe racers, vintage bikes, rat bikes, generic racing style bikes (think ninja, suzuki) ( no big Harley V-Twins styles) the more customized, the better (fairings removed, stickers, custom paint job, seats, etc)muscle cars (sweet spot is 1966-1974 body styles) NO EXPENSIVE SHOW CARS, think daily riders, that the driver uses everyday, and doesn’t mind doing donuts in a parking lot.

This ought to be horribly distracting, but by and large, television audiences have learned to manage.

It is so ingrained into our mindset that almost all aversions end up being notable.

While maybe not the worst case example (Jack aside), it is a joke that has filtered into the cultural mindset regarding the show.

By and large this trope requires some research, you can't know for certain that an actor/actress is a certain age unless you scour around Wikipedia or IMDb.

's reigning champion Ore Oduba proved that it's not just dancing he has a talent for on the Children in Need telethon.

The presenter took to the stage to perform a tribute to Gene Kelly, delivering an all-singing, all-dancing spectacular.

Ultimately realize that there is nothing fundamentally wrong with this trope; all forms of entertainment are about the illusion. At the same time this is not about age discrepancies, just being three or four years older doesn't necessarily mean the production is "trying to pull a fast one" on the audience.

If anything finding a 19 year old to play a 17 year old is well ahead of the curve.

Compare Age Lift, Age-Inappropriate Dress, and Three-Month-Old Newborn.

Contrast Hollywood Old, Playing Gertrude, Underage Casting, and Children Voicing Children.

17-year-old Michelle Williams was the only one still high school aged.