[oil pan 4]

When I was active duty air force we had a lot of stupid rules. Combine stupid rules with a bad flight line layout and a situation was created where flight line tow vehicles were turned off and started up to 100 times per day up to 24hr 7 days per week.
On the Ford powerstroke and Cummins powered trucks with heavy duty starters this didn't seem to effect their life expectancy very much. I would be surprised if it even cut their life in half.
Light duty gasoline powered vehicles such as Chevy bread vans with 6.0L gas, ford Rangers and S-10 it may have cut their starter life in half. But these vehicles would only get started up to a few dozen times per day and we're usually only used for one or 2 shifts.

Don't worry about oil drain down. I have taken apart engines that had been sitting up to 20 years that still had oil up inside everything.
The oil drain down idea clearly was invented by people who have never taken apart an engine.

My solution is for my diesel is to get a gear reduction starter and for my gas engine V8 engine use the power master rare earth magnet, gear reduction, ball bearing starter.