Padding ties up capital, it reduces credibility, it delays deployment, it adds costs through delay. It is bad for organizations. However, it is a great solution if you're a worker in a bureaucratic environment that can tolerate large costs, but is intolerant of 1-day of schedule slips. It's a great solution for complacent management, who are confused about the game they're playing and wants to report that they're "on track", which means "not late".
The agile solution of incremental value delivery is a compromise, and can produce good outcomes for functional changes. But agile has unacceptable failure modes when working on infrastructure and satisfying system constraints. Agile can work okay for programmers, but it's not a solution for engineers. Acknowledging, owning, and managing risk is more scalable, but you have to have leaders who acknowledge that they exist and have the maturity to take on that responsibility.
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Padding ties up capital, it reduces credibility, it delays deployment, it adds costs through delay. It is bad for organizations. However, it is a great solution if you're a worker in a bureaucratic environment that can tolerate large costs, but is intolerant of 1-day of schedule slips. It's a great solution for complacent management, who are confused about the game they're playing and wants to report that they're "on track", which means "not late".
The agile solution of incremental value delivery is a compromise, and can produce good outcomes for functional changes. But agile has unacceptable failure modes when working on infrastructure and satisfying system constraints. Agile can work okay for programmers, but it's not a solution for engineers. Acknowledging, owning, and managing risk is more scalable, but you have to have leaders who acknowledge that they exist and have the maturity to take on that responsibility.