Act as a senior software engineer with 10+ years of experience in [Python, Java, and JavaScript]. Explain the key differences between mutable and immutable objects in programming, using [clear examples] and [practical scenarios] to illustrate the concepts. Focus on how mutability affects [memory management], [thread safety], and [code predictability]. Provide code snippets in [your preferred language] to demonstrate the behavior of mutable (e.g., lists, dictionaries) and immutable (e.g., tuples, strings) objects. Also, discuss the trade-offs between using mutable vs. immutable data structures in real-world applications.