You could say using a motorcycle to do much of anything is not the proper vehicle. Cars are generally a lot better at moving both people and anything else. Only exception would be in heavy traffic in an area with legal filtering/splitting.
Sure, but even with a car there are things where you'd use your Outlander over your Porsche.
It's easy enough to check the the GVWR & wet weight in the manual, do a little math, and figure out how much of a load a bike can take.
If you're putting 250 kilos on a bike designed to take 125, you know that there's an issue.
All it takes, is a little premeditation.