Yeah but it makes a huge difference whether you just have to kill one person to survive or 23. And compared to an 18 year old a 12 year old is also a child, especially physically.
Harry had at least a year of education (magic) and a special talent as the chosen one before facing him for the first time (I think it was near the end of the first school year). He also wasn't malnourished.
Primrose and her family almost starved to death.
I still don't really think her name had anything to do with her destiny. I mean yes, she put a lot of thought into the names she chose, but they seem to reflect the heritage of the characters more than their fate. Peeta is the son of a baker (pita bread),
Primrose is a healer and uses herbs and I think also flowers to heal. Glimmer is from a district that produces luxury goods. Does Clove sound very brutal to you? She was a villain. Glimmer was a villain. Glimmer doesn't sound particularly strong. Neither do Gloss or Cashmere or Beetee (also winners of the games).
Haha, sorry, just reading the last book :P