Some kits do. Examples include bead palettes that double as storage with a carry handle and separate carrying cases designed to organize beads and tools.
Many kits are labeled for ages 6 years and up; some start at 4 years and up, and a smaller number list 7 or 8 years and up depending on the set.
Piece counts vary widely. Examples range from a few hundred pieces (e.g., 324 or 502) up through kits listing 1,175, 1,220, or 1,400+ pieces, and some sets include as many as 2,750 pieces.
Reviewers generally find these kits child-friendly and usable independently, though some note a short learning curve and occasional issues like picture-only instructions or fiddly closing/button mechanisms.
Many kits include finishing hardware such as jump rings, lanyard or carabiner clips, clasps or C-clips, and elastic or metallic cords to complete wearable pieces.