Only touch screen controls for important controls are a safety hazard, and the upcoming safety standards in the EU will withhold the top ratings because of this: https://etsc.eu/cars-will-need-buttons-not-just-touchscreens-to-get-a-5-star-euro-ncap-safety-rating/

Controls for things like the radio or cruise control are fine on the wheel as buttons. Indicators absolutely aren't, and are the example I used for good reason. Honestly I have no words if you cant see that they are an actual safety hazard on something like a roundabout, particularly one you would navigate at speed.

Simple left or right turns at say traffic lights or other junction aren't the problem, trying to activate them while the wheel can be at some random orientation is difficult, so you end up not bothering.

Not signalling when at a round about is an offense in the UK. Its rarely enforced due to lack of traffic police, but its enough that its an actual offense that the car should be designed not to make it considerably harder to use them. In the event of an accident serious enough for the police to get involved if you didn't indicate then that's going to count against you.