UJM
non of your minor points hold water
1) At a chasuna it’s usually difficult to have an area for a minyan where you can have a mechitza.
I’m not sure that an ad hoc minyan needs a mechitza, and even if want one EVERY chasuna Ive been to has had a mechitza, and even if for whatever reason that mechitza cant be used (band is noisy or something) ok so they dont daven stand quietly answer amen yehei shmei rabba
2) And, while it might involve less effort than taking care of multiple children, even after the children left the house the wife’s first obligation is to serve her husband. (That’s the reason she’s halachicly exempt from Kind Av V’Eim, while married, since she must serve her husband first.)
agree, I’m limiting my question to when she isnt engaged in prior commitments say Friday night the table is set, the food is warming why not go down the block to chap arein an amen yehei shmei rabba or 2