Getting ready for my presentation during “Children in the sustainable city” seminar I was thinking why children are so little present in designing cities, which they yet use. I remembered conversations with my friends of how much influence children – even the small ones – have on our purchase decisions. And I am not talking of small expenditures such as kids’ snacks or even clothes. Children co-decide when it comes to choosing cars, apartments, not to mention the destination of family summer holidays. In case of a car they might not be able to judge the engine’s performance or how economical it is, still we value their opinions, because we treat them as partners and equal users.