Every consumer item whether it be food, toys, films, scent, pop music, games, books, cars - everything that is made to be sold - is created with a target market in mind.
Age, gender, social class, financial means are the primary considerations which are further broken down in to sub categories.
People though are individuals and can't be put in to a particular box so although Barbie's target market is young girls who like pink there will be some boys and adults who enjoy it too.
That applies to 99 % of commerce.
The other one per cent are things that are of no use to people outside the target market.