What older woman do you think is hot?

[Exception Collection]

Well, yeah. Like that girl on modern family that's 20 (who my wife pointed out was dressed like a cat hooker last week) but plays 15.
I heard they prefer people 18 and up to play youger roles to avoid child labor laws.

That and they don't have to deal with changing looks. If they cast an actual 14-year-old, they could start breaking out severely or have other issues.

Of course, this becomes extremely grating when you have long-running shows. Take Buffy: The Vampire Slayer and the spinoff, Angel. In Buffy, they cast Nicholas Brendon as Xander (25), Alyson Hannigan as Willow (22) and Charisma Carpenter (26) - as sophomores in high school (15-16). Then the show lasted for 7 seasons, leaving Hannigan and Brendon in their 30s while playing 23 year olds. Carpenter was written out of that show in the third season, and added to the spinoff Angel - where she lasted most of 5 seasons, either as a main character or a guest star. Leaving a 34 year old to play a 24 year old.

Dawson Casting.