Is it permissible for a woman observing the 'iddah (waiting period) of widowhood to go out for Friday prayer if she lives next to the mosque and is elderly?

The madhhab (definition) of the majority of scholars is that a woman observing iddah (definition) (waiting period) must remain in her home day and night and should not leave except out of necessity. Her going to the mosque for prayer is not a necessity; rather, her praying in her home is better for her. Scholars have permitted her to go out during the day to fulfill her needs, but prayer is not among these needs. However, the apparent meaning of the Maliki school's opinion is the permissibility for a woman observing iddah to go to the mosque. There is a difference of opinion on this matter, and it is better not to go out for prayer to avoid disagreement.