Answer:
Fremont opposes the practice of slavery in the territories.
Search and seizure would mean something like the government taking your cell phone and going through every message you've ever sent, or entering your home and searching through all your dresser drawers. They need to have a court-approved reasonable cause for doing something that invasive.
Quartering of soldiers would mean soldiers would have the right to enter your home and expect you to provide them food and lodging. That's pretty invasive too.
In either case, we're talking about invasions of your privacy, your personal space. Court justices have used statements like those about search and seizure and quartering of soldiers to show that the constitution does give attention to citizen's right to privacy, even if not using the exact term "right to privacy."
Because their fathers knew how to handle them and wanted to pass this knowledge to their sons? Or bc they believed that their sons needed this knowledge to succeed in life? Or that it was common to do so and their fathers taught them it so they wanted to continue this tradition? Idk bro