Family coasters are not kiddie coasters. Goofy's Stunt coaster is a kiddie coaster. By definition, a 'Family Coaster' appeals to adults, too, i.e., the parents in the family.
Something that has always slightly intrigued me is that Flight of the Hippogriff, Goofy's Barnstormer, and Woody Woodpecker's Nuthouse coaster are - more or less - the same ride.
FoH: 1099 feet, height: 43 feet, duration: 1:06 min, Vekoma junior, designer: Peter Clerx.
Woody: 680feet, height 28 feet, duration: 45seconds, Vekoma Junior, designer: Peter Clerx.
Goofy: 780 feet, height 30 feet, duration: 60 seconds, Vekoma Junior, designer: Peter Clerx.
Yet they are perceived very differently. Flight of Hippogriff is much more thought of as family coaster. Woody is unfortunately located in the 'kiddie' part of US; many parkgoers don't even go to that whole quadrant of the park.
And just for even more hoots:
7DMT: 2001 feet, height: 41feet, duration: ?, custom Vekoma, designer: Peter Cleryx. It has 2 lift hills instead of just one.
(source: rcdb.com)
It is also worthwhile to recall the plight of Dumbo. Before it was relocated, Dumbo almost always had a solid 30 min wait. Now it is usually a complete walk-on. Oddly, Astro Orbiters' popularity has waxed and waned over the years. Also oddly, Triceratops Spin has never been very popular. One Fish Two Fish is fairly popular. If only WDW had added spitting geysers and a song to their ride!