The stranger's interaction with Elisa at her garden is different from Henry's interaction with her at her garden. The stranger's interaction with Elisa was a bit awkward since they were not introduced formally and Elisa was a bit professional as she entertains the stranger. On the other hand, Elisa was comfortable with Henry since they have been friends for a while already.
In the Interaction between Elisa and the stranger, he leans over and then actually enters to the garden, showing that he is more forward and sort of aggressive, meanwhile, Henry seem to respect more her personal space, he does not get in the garden, remains outside.
Well my argument with that is the fact that kids don't get to show self expression with the outfits they wear. It has it's good qualities as well though because it help prevent more bullying about what other children wear.