Is there an interview where children are confirmed? I've seen nothing about it.
From UESP:
World
Five large cities, comparatively larger than those in Oblivion, are available to explore (and to be attacked from above by dragons), along with a wider variety of caves and subterranean areas. Fast-traveling to locations already discovered has returned. Cooking, farming, wood-cutting, and mining, in addition to weapon-smithing, can be done in different towns. Children are also featured in the game.[1][4]
Sources:
1 was from the GameInformer Magazine
4 was http://www.vg247.com/2011/01/08/the-elder-scrolls-v-skyrim-details-outed-on-combat-leveling-races-more/
As long as they do not steal from you, attack you, or constantly use increasingly childish insults at you, then their presence in the game should be fine.