Coin-based decision making is probably a bad idea, but I've heard that flipping a coin to decide between two options is a good idea if you're indecisive, because while it is in the air you'll know what you really want to do.
Yeah, more along those lines is what I meant. If you've got two (or a few, you can break it down pretty easy using a single coin) options that are as good or nearly as good (or at least you have no particularly strong reason to choose one over the other), then a coin flip can save some time. Mostly I'm just sorta' curious if reality has some kind of strange coin-flip bias where choices made like that (between two relatively good options) tend to come out better than not. Maybe it (reducing your field of choices to a small pool of acceptable ones and then choosing pseudo-randomly) is a more optimal strategy than actually deciding! I don't think anyone's actually ran the numbers, so... it could be.
Not sure if I'd use indecisive particularly, though. More of an ambivalence thing. Indecision would indicate sitting around and trying to figure out the better choice instead of just choosing and not really caring what the outcome is. Most of the decisions I make via coin flip (which, being fair, mostly revolve around what's for dinner) certainly aren't made in mid air, though. I just don't really care what I eat (well, among the foodstuffs I keep regularly) and flipping a coin is more fun than grabbing the first thing I pull out of the food bag* sometimes. Heads means the food that comes earlier in the alphabet, tails the one later.
*I keep most of my canned food and non-perishables in a single large bag (I think it was originally a laundry bag or something, I'unno.), which I reasonably refer to as the food bag. Lunch generally consists of reaching into the bag and cooking whatever comes out, but sometimes I flip for it.