So do Java, C#, Python, Ruby, PHP, Javascript, and virtually everything else and they are very heavily used. Garbage collection is a smashing success in the real world and D made the right decision to follow that success.
Of course, it is also true that much of the standard library doesn't actually use it... but these objections are never actually about facts.
Of course, it is also true that much of the standard library doesn't actually use it... but these objections are never actually about facts.