It’s extremely efficient!!!!
This also is very helpful when a school doesn’t allow the child/teen to have a cell phone. You explain that there are family cell phones and do not belong to the child and anyone in the family can take them at any time…
Our family does not use that, since my siblings have enough fun losing/breaking the home phones…
But out family claims my cell phone is the family’s, that’s what many people do to dodge the rule that the school sets.
But I know many people that really keep on them as family cell phones, and it is a very efficient solution!