What happens when 1st levels inherit magic gear?
A generation ago (by human standards) there was a mercenary company as the Company of the Laughing Mermaid. They were Atlantean Privateers and pirate hunters crewing a ship called, appropriately "The Laughing Mermaid". They were sailors and marines that traveled the coasts (both Atlantic and Mediterranean) of Europe and Africa, chasing down necromancers, monster hordes, evil warlords, and whatever else seemed to need attended to.
Then after 10 years of notable success, much of it still sung about, they retired and went to their various homes to start families and enjoy the rest of their lives in the comfort 10 years of proceeds could bring them.
You are their children, and your parents have just been murdered. You would like to know why, so you've gone into whatever chest in cellar or attic, holds their "momentos" and working gear, long mothballed, and have equipped yourself to go out and find who made you an orphan, and why.
Or, to put it another way: the party will start off at 1st level, but will have equipment suitable for much more experienced sorts. This may be a single Legendary item, but is much more likely to be a collection of lesser items that form a "tool kit" for a specific class. The parent's class, not the character's.
If you find this at all interesting, please checking the link above for more specifics.