I wouldn`t recommend leaving your Kentucky rifle loaded. A lot of people I know unly use their muzzleloaders during the special muzzloading hunting season(s).
A fellow I know decided ,at the end of muzzleloading season, to remove the cap but leave the charge in until next year`s season.Over the course of the year, he`d forgotten he left powder & ball in it.Come muzzleloading season, he capped it and squeezed the trigger. Well, the ball discharged and hit someone in the leg.
He apparently didn`t know enough about muzzle loaders( or gun safety in general) to have put the ram rod down the bore(,before capping it) to check if a charge had been left in it.
Messy situation that cost him big time. The fella that was shot didn`t have a very good time either.
Unless your`e thinking of leaving it loaded for self defense, it`s not a good idea. Even at that, there are better choices for self defense.
Some people,if they leave a muzzleloader loaded for an extended time, will attatch a red tag to their trigger guard,as a reminder to themselves.Whether a kid or somone else will understand what that red tag means is anyone`s guess.