Why is advertising to children NOT harmful?

Advertising is part of the free market economy in which we live; if we accept that economic model, there is no apparent reason why people who want to sell something to children, or the parents of children, should not advertise. We can still require truth in advertising. A possible advantage of advertising to children is that this gives them some opportunity to learn about advertising early in life. Of course, children may become greedy or demanding when they are exposed to clever advertising campaigns, but even so, it will still be their parents who decide what to buy, and children are going to have to face The Temptations of consumerism sooner or later.