I don't understand how 'just coupl(ing) it up' and landing on an unprotected Cat 1 ILS below mins is a suitable and commonly accepted practice and flying away from an ILS to a non-precision environment in the back blocks because you have a 400' ceiling. There is no ceiling in fog (usually) but there might be a couple of thousand metres of vis or RVR. This isn't the approach taken in the rest of the world. I also don't understand how, once dispatched, you can be required to hold a 'legal' alternate airborne. If you plan to an airfield that is above alt mins that goes below mins once airborne and you cannot hold an alternate you're illegal. You can't make fuel in this curious double jeopardy situation.