When my then then 16 year old DD was in a traffic accident, she burst into tears when she called me and got my voice mail. Only took a few moments for me to check the voice mail and call back, but when you are 16, and standing next to a busy freeway with a wrecked car, you don't want to get voicemail.
So...if I had a landline, what about this would change?
Because I guarantee you, even if you don't give out your cell phone number to anyone other than friends/family, you're still going to get junk calls. So using my cell phone as my main phone isn't the only reason I get junk calls.
I just never understand the whole "I don't want to have to answer phone calls on my cell phone all day!" Um, you don't have to. If you didn't have a cell, and people were calling your landline at home, they'd have to wait for you to get home and listen to your messages, or call in to check your voicemail from another number.
When I *did* have a landline, I didn't answer calls I don't recognize, either. My daughter is 22. The number of times she's had to call me from a number not her own or one I would recognize is precisely once, when they evacuated her school the day she'd had her phone taken away for having it out in class, and she had to call me from a friends' phone to arrange a way home.
Even if I had a landline at home, I would not answer calls coming from numbers I don't recognize on my cell phone. I don't do it. They can leave a message. The minuscule chance that my daughter (or my MIL, before she passed away) would need to call me from anything other than their own cell phones or my MIL's house phone isn't worth being a slave to random people calling my phone, which are almost always garbage calls.
(ALso, the two times DD has gotten into car accidents she was already sobbing by the time she called me, so getting my voicemail and having to wait 30 seconds wasn't going to make it any harder. Tye last time she was so upset the police officer stayed with her until I could get there.)
I see no legitimate reason to have a landline. None. I have a phone. People can contact me a variety of ways. I am *more* in touch with people than I was before cell phones, because I can be reached any time of the day, no matter where I am.