I have a kid that has watched too many yt bass fishermen. He wanted a bait-caster, bought said bait-caster for his birthday. Birthday was the last week of march, I am pretty sure I am on my 5th re spool for him..... #deathtobaitcasters
Fill the reel with 6/20 braid at proper level. Tie on (Palomar Knot) a quality "saltwater rated" bbl swivel, attach a 4/6in leader of your choice of material (if braid ALWAYS Palomar--SCREW everything "else"). Pike cut braid like tissue paper. Be inventive of the presentation (wire) attached to the swivel: Spool depth will be preserved for years: The later "hairs" don't make a shit and Sharpie makes the markers to camo if necessary.
Anyways; send the kid out in the yard to practice casting with diminishing weight when one is "easy".
Braid backlashes can be 99% unfucked with patience. Mono will fuck your day.
Teach the kid how to fight a fish by being the target. The "lure" should land at your toes. Grab the weight, "fight" and coach/explain "things" all the way back to the toes. Try to create slack as things progress. This is by no means exclusive to BC.
Be creative. Preserve the spool. Fly fishermen know.
That is all.