Age won't make a difference - it was dropped, no fault of the manufacturer even if it was under warranty.
Should have been insured against accidental damage.
And, you never, know, if you go in to an Apple store, little one in tow, and explain what happened, they might just take pity on you and waive the fee for the replacement. Stranger things have happened.
I've got a scratch on mine (iPad 3). I can't see it unless I hold it into the light in a certain way.
I can live with it, it's just annoying knowing it's there TBH. How much would a replacement screen or getting the iPad replaced by a refurb be in the Apple Store does anyone know?
Mine is smashed to bits but still works just need the screen replacing, seen some websites advertising for £50.
Could claim on house insurance but excess is £100.