The expensive combination is dense bending plus the post-lunch restart

Many route plans follow geography alone and assume the mountain section can sit anywhere as long as the map sequence works.

For seniors and children, however, the body after lunch is not neutral. Fullness, sleepiness, heat and motion sensitivity often change together.

Handling the core mountain road in the morning usually keeps nausea and mood more controllable

If breakfast, moderate hydration and a proper toilet stop have already been handled, many travellers tolerate continuous turning better in the morning than later in the day.

Even if one mid-segment stop is still needed, it is usually easier to manage than entering dense bends immediately after lunch.

Saving the hardest section for after lunch often hits both seniors and children at once

Senior travellers may show slower restart, amplified dizziness and lower conversation tolerance after lunch, while children may turn irritable quickly once sleepiness, fullness and motion combine.

The map time may not be longer, but the lived cost is often noticeably higher.

The main exception is when the morning is locked by another fixed constraint

If the morning must protect a timed entry window, a document checkpoint or clearly worse early weather, then the mountain section may need to move later.

Even then, it usually works better to keep lunch light, leave a small buffer after eating and avoid entering the dense bends immediately.