Is wholesaling legal in California?

[Samantha Soto]

My dad is a real estate attorney.  He and I are debating whether or not wholesaling is legal in CA.  He is arguing that it should not be done without a broker's license.  He says bringing buyers and sellers together is exactly what brokering is.  

Is he right?  From what I hear/see there seem to be so many people wholesaling without a brokers license.  It seems dumb that one would need a license to do something that's relatively simple.