the possibility of getting a driverless car in a few years
Depends on how long is your "few", but note that you'll need for the driverless cars to not only become available to the public, but also stop being bleeding-edge expensive. Look at Teslas -- they are available to the public, but they are not cheap.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.