First.. lose the douchy avatar and username.. No one likes a douche..
In answer to your question..
I am 45 and started riding three years ago, with the encouragement of friends, one of which is a ride instructor with the Motorcycle Safety Foundation (MSF). I live in an extremely urban area, so my ride conditions are pretty bad for learning, and got hit on my first bike by a guy crowding through my lane as he tried to make a turn at a light at which I decided to stop, totaling my bike and bruising me up.
If you are serious.
1. Take an MSF course. It's the best way to learn safely, with the bonus of being able to take the road test at the end of the class on their bikes. Seld teaching will get you hurt or killed.
2. Pick a small displacement standard or dual sport as your first bike for city riding. Contrary to looks, the Ninja 250, 300 and 500 are all standard bikes, with fairings bolted on. They are not super sports, and are quite tame to learn on. Another good one if the Suzuki GS500F.
3. Buy used. You will probably drop your first bike. Also, popular starter bikes can be sold for almost what you paid for them. If you are in a cold climate, but a fuel injected bike. Less warmup time in the cold makes it more useful.
4. Wear full gear. Full helmet, armored gloves, armored jacket and pants, and motorcycle boots that go over the ankle. I was fully geared up when I got hit,a nd only got bruised up, despite being flipped over the bars, face-first into a speed limit sign post, and then somersaulting onto the pavement to land on my shoulder. Without gear, I would have been very severely injured and probably crippled.
5. In the city.. start your riding very early on the weekends, when traffic is light. Pick a simple route, and do it a few times to get sued to the controls. The start ranging out further. Do not commute in real traffic until you are comfortable in moderate weekend traffic. Rush hour drivers will have very little regard for your safety, so you need to be able to react smoothly without panic. You will also need to be VERY proactive.
6. Once you have ridden your first bike for a year, you can think about what you want in a replacement bike, if your first bike is lacking in some way. I upgraded to a Ninja 650r, which has a similar upright riding position as the 250, but with more power and comfort, which is better for the 80mph portion of my commute. Since then, I have added a bunch of gear to it to make it a decent light touring bike.