Freeform Fitness
Contestants always seem to be super fit, but there is no gym in the mansion to keep up with their physique. Some contestants have said they run up and down the mansion stairs or even use random objects around the mansion in lieu of weights.
Engagement Not Necessary
There is no contractual obligation for the Bachelor/ette to end in a marriage proposal. But, you know, sometimes, you gotta give the people what they want!