Alright here goes lol
1.Because I don't want to be a bass, and all of the songs I want to sing are way out of my range. (Ozzy Osbourne, Aerosmith, Rick Astley, etc.)
2.I can hit it fine no cracking but I can't belt it. I can belt the Db just above it though so anything from the Db2 to G4 I can belt. And that G is only on a good day any other day I stop on the F# below it.
Sounds familiar. You are exactly where I was when I started. I wanted to be a tenor so bad it hurt. It didn't happen. Eventually I learned to love the instrument I was given and started looking for baritones to emulate (Johnny Hartman is my model).
One of my first music teachers told me that my voice would certainly move up with training and he was right. When I first started I could go from D2 to E3. Now I can sing from Gb2 to Bb4 reliably and when warmed up I can just get that C5. That said, I never go above G4 when performing.
I don't know much about falsetto so I can't give you much practical advice about it except to say it is used all the time in the kind of music you like. Listen to Crazy Train, for example, Ozzy uses falsetto extensively on that tune.
Good luck.