The other day my sister pulled out some old walkie-talkies that my folks found in an old junk box. Back in the olden days before cell phones, that was how my parents would communicate across the road while they drove different cars.
I began to realize that walkie-talkies are a lot more practical to use than cell phones in certain situations, such as two people driving somewhere in different vehicles. Walkie-talkies don't rely on cell towers or Internet connection for example, so as long as you're in range with the other person you don't have to worry about the call dropping out. Plus you don't have to fiddle around with the walkie-talkie if you need to call back the other person; usually with a cell phone you have to navigate a couple of different screens just to call the person back, and voice control can be fiddly to use, especially if the software has a hard time understanding you. Meanwhile with walkie-talkies, as long as you're on the same frequency you don't have to worry about wasting time with the process of calling the other person; just press a button and bam you're talking again.
Granted, walkie-talkies have their limits, but when it comes to short-distance communications I think they can more useful.