36 years on motorcycles for me. Most of them 650cc or larger.
I took a 18 month break from riding before being drawn back in (DNA, you know) and the things I like most about the CBR is that I am able to get my leg over the seat with my riding gear on (it's bulky and I refuse to ride without it), my feet touch the ground and it's affordable.
The best advice I can give to a new rider?
RIDE YOUR OWN RIDE
I learned that one the hard way.
I was leading a friend through some nice forest roads on the way to a rally, and I was pushing the pace too much, trying to make sure I wasn't going too slow for my friend.
At least I had someone to help me pick up the bike.
With a very sore shoulder, we pressed on. I spent the weekend eating ibuprofin. When I got home I found out I had cracked the tip of my collarbone. No wonder it hurt so bad!
But that didn't stop me from riding. It was a couple of years later on another group ride. I was 2nd in line of 4. The other two were straggling, so they didn't really see what happened.
I was behind the ride leader, almost back to home base, and by my logic we had another block to go before turning right. I allowed my gaze to wander and sure enough, the ride leader slowed for the first right-hand turn instead of the second.

I rear-ended him...
His metal adventure-type saddlebag that my clutch lever impacted almost removed my left pinkie finger.
I've been told that group rides can be dangerous. This is especially true if you are riding with strangers. Keep your distance and keep your mind alert.
I've given up trying to sight-see while in motion on the bike. The bike will naturally head in the direction you are looking without you even realizing it.