Bearing - totally agree.
That is why we spend a lot of time recruiting the "right" pilots, and then spend more time, and money training them. They also get a salary, flight pay, night stop allowance, holiday pay and BUPA cover. They are also issued with a company credit card, and company mobile phone.
Once on line, we don't send them on the more demanding charters until they have accrued some on-line experience. Handling, flight planning, and a thorough crew brief are all sorted by the ops staff. All flights are conducted IFR, unless it is a positioning leg on a short sector, and the pilot elects to do so.
why do we do this ? - Basically, because it makes commercial sense to do so.
A well trained, motivated staff member, whether a pilot or other, will deliver a much better service to the customer.......who in turn is more likely to use your company again...and again...and again. This in turn brings your unit cost down, and allows the company to expand.
Single crew has a bad name, mainly because it is entry level into commercial aviation, and therefore a lot more idiots running companies at that level. Just for the record, Titan Airways, Flightline, LEA, and a whole host of biz jet operators started life as single crew operators. Run properly, and it safe and rewarding.