Is it permissible to sell clothing for young girls (up to the age of seven) that includes trousers and short dresses?

Summary of the Fatwa (definition): It is impermissible to sell or manufacture clothing that exposes the awrah (parts of the body that must be covered) for men, women, or children above the age of seven. As for children under the age of seven, it is permissible because their awrah has no legal ruling, with the caveat that this ruling is restricted to cases where the child's growth is not so rapid that they appear older than their actual age. This varies depending on different environments.