Trusting the other driver's turn signal at a 4-way stop is fine.
Trusting the other driver's turn signal when one or both is in motion is a good way to get killed.
Signaling to enter or exit a roundabout communicates no useful information.
Trusting the other driver's turn signal when one or both is in motion is a good way to get killed.
Signaling to enter or exit a roundabout communicates no useful information.
You haven't been driving long (or at all) if you think trusting other drivers' turn signals is a good idea. Theories that look good through a bus window often don't work as well when viewed through a windshield.