What are the consequences of using a standard Mutex instead of RWMutex in code?

Using a standard Mutex instead of RWMutex will cause all operations — both reads and writes — to block each other completely. RWMutex allows multiple goroutines to read data simultaneously if there are no writers, which improves performance during frequent read operations. Replacing RWMutex with a regular Mutex will make even reads sequential, potentially reducing throughput and increasing latency in multithreaded applications.