How's it going? To be able to fly a Jet such as the ones you mentioned, you have to earn the following ratings:Private, Instrument, Multi-engine, Commmercial (for passengers), and then a type rating if the plane weighs over 12,500 lbs.
My guess would be a few years before you can fly one.
You can fly a lot of those jets alone. Some do require a second-in-command pilot for instrument conditions. Some also require a certain amount of hours in that type of aircraft before flying it solo.
Remember when sex was safe and flying was dangerous?