Cell phone "elitists" bug me. These are the people who insist that land lines or home phones are relics of a bygone era, and anyone who has a home phone are either simply wasting their money, or refusing to change with the times, or are somehow mentally deficient for not ridding themselves of a land line and going exclusively with cellular phones.
We know a handful of families that have ditched the land line and gone entirely with cell phones. (To their credit, they have been far from "elitist" about it.) Unfortunately, we have encountered some common problems trying to call our cellphone-only friends. These are based on actual, real-life experiences.
You have to double (or more) the number of phone numbers you have to know to call the family. You can't just call one number for the family, you have to know the number for the husband, and the one for the wife, and possibly the numbers for any children.
Published phone directories will likely not be set up for this and list only one number, which at best will be a 50:50 chance of belonging to the specific family member you wanted to contact; so unless you make a point of getting down everyone's number, you'll consistenly call one family member just to ask for the number of another family member. (While the first family member could simply hand their phone to the second, I've found it's more common they will request you call the second number, so the first phone is still free for calls that are actually for the first person.)
You don't know if they are home when you call, and you will end up reaching them at an otherwise inconvenient time (i.e., when they are out shopping, at work, running some other errand, away on vacation).
If you don't care whom you contact (i.e., you want to call the family to set up a visit, invite them to dinner, pass them some information about a community event, etc.), you end up having to decide whom you're going to contact.
The person you decide to contact will end up being the least convenient person, as they will end up being the one who is out of the house (as above), greatly raising the chance any information you wanted to convey to the family will be long forgotten by the time said person returns home.
The cell coverage in the neighborhood isn't great, and the call will end up sounding like tin cans and string (when it's not dropped). This seems to be especially true in our "outer suburbian" neighborhoods, and even more so near certain schools.
Even when the desired person is at home, and assuming their phone is getting enough reception, it is not uncommon for someone to misplace their pocket-sized device, or not hear the single ringing phone from elsewhere in the house; and they can easily miss the call for being unable to hear or find their phone in time.
While I could possibly see this working more for singles or couples, it just doesn't make sense to me for families. In order to allow your children to make or receive phone calls at all, you either have to yield "your" cell phone, or shell out the money for their own.
I understand why some people do it. The families we know that have gone to cell phones have done so to save money, and to get away from endless telemarketing calls. Those are certainly appealing reasons — we easily get three times as many unwanted calls on our land line as calls we actually want to take. But in practice, it just makes calling a family unnecessarily complicated, and they are just problems we'd rather avoid. It's not a waste of money, and we're not stupid or living in the past.