I 100% agree about doing MOB drills with experienced crew. I also understand what it is like to sail singlehanded or with people with no sailing experience (basically singlehand like I used to do with my kids). MOB drills in this case just aren't an option but you should teach them to do something. Throw flotation devices, use the radio, start the engine, get the boat stopped, slowed or at least heave to.

And if you really are the only one on the boat and the weather requires it or if you have to go up front, you should be tethered to the boat.