Are the siblings and parents held accountable and sinful, according to Sharia, for not fulfilling their sister's repeated request to go out for a stroll; and what should they do if the sister is mistaken?

The daughter's maintenance is obligatory upon her guardian, and it includes necessities such as food, clothing, and housing. As for luxuries like going out for recreation, they are not obligatory upon the guardian, but he will be rewarded for them if he intends to be charitable. The daughter's claim that it is obligatory to take her out for recreation every two days is incorrect, and that is not obligatory unless a specialized doctor confirms that her remaining at home is harmful.