Like a 50cc scooter you don't need a license to ride or a freeway legal scooter? If you looking for a bike that's easy to ride, a scooter is about as easy at is gets. The engine and gas tank sit low in the chassis, marking them easy to maneuver. Plus there's no shifting on a scooter and better weather protection.
Sometimes combining shifting, particularly those who haven't driven a vehicle with a standard transmission, with learning riding skills can seem challenging for newbies, but I think the most people will master it quickly with enough practice.
If you're unsure about riding, I think the conventional wisdom would be to start small, like 300ccish, which should be light and nimble, making acquiring the necessary skills for riding on the road like panic stops, swerving, negotiating curves, much easier. The when you're ready you can work you way up to whatever bike it is that you want.