The license isn't for the aircraft, it's for the pilot. If you fly it outside, you're required to have a license.
My 8 yr old has a helicopter that's listed as for indoor use only. The only time he flew it outside, I had to retrieve it from the roof. It doesn't have enough power to deal with any sort of breeze. That said, it's pretty easy to fly around the house though a gym or other large room would be best.
The controls on the quad rotors and the helicopters are basically the same. We had the same problems as the OP at first with it, and a trip back to the store found that it had been assembled incorrectly at the factory. Seems the blades are different and if they're in the wrong place, it won't fly at all. Once we got that sorted, it was still waaaaay too touchy and the battery life was a joke (like 90 seconds). So we traded that for a helicopter and he was much happier.
This is what he has: https://www.hobbytown.com/Shop/AZSH1350-Ares-Chronos-CX100-Ultra-Micro-RTF-Heli-w-Camera/
The bigger single rotor helicopters are a whole different animal from the twin rotor type.