People very strongly emphasize eating the entirety of an eruv tavshilin on Shabbat (some even designate an honoree to eat the eruv). No one I have ever heard of, however, ensures that an eruv ...
One can 'force' a dependant to make an eruv t'chumin. Since they are only made for a dvar mitsva this is considered like forcing him to do a mitsva which one who has the power, has to do. Normally ...
The g'mara on Eiruvin 82b explains that a man can make an eiruv for his minor children and Canaanite slaves without their consent, but for adult children, his wife, and Hebrew slaves they must ...