Pre 'automation' navigation procedure required beacon overflight before turning; airspace design and management allowed for this.
Post automation it is possible to use turn anticipation which enabled more efficient airspace use, increased traffic, etc.
Choosing to fly manually in modern 'automated' conditions requires the pilot to adapt to the norm, greater mental demand, increased workload, less attention on overall flight management, - why would we choose to do that.
Auto unavailability, system failures are rare; there is no need to practice for a rare event when alternatives are available - use alternative procedures, communicate, declare an emergency.
If there are no alternatives then ask why; now, before any failure, do not depend on automation.
Alternatives should not force change on limited capability humans; nor expect that being able to remember / calculate, divide, and multiply will improve flying in surprising situations when automation fails.