Short answer: prioritize sturdy, stable toys with rounded edges and open-ended play — stacking and sorting, first pretend play, and active movement — and don't overstuff the play area.
What changes at 1-3
Toddlerhood is when children go from exploring to doing. They walk, climb, stack, sort, and begin real pretend play. Toys that let them act on the world — pushing, building, pouring, feeding a doll — match this developmental surge better than passive toys.
Movement toys
Walkers, stepping stones, and small climbing sets channel a toddler's drive to move into safe, purposeful activity. Look for stability and weight capacities that leave room to grow.
First pretend play
The first play kitchens and role-play sets usually appear around 18-24 months. Keep them simple — a small kitchen, a few pieces of food, a doll — and let the child lead the story.
Stacking and sorting
Activity cubes, stacking toys, and shape sorters build fine motor control and early problem-solving. They also teach patience: the joy is in trying, failing, and trying again.
The golden rule for toddlers
Fewer, better toys. Toddlers concentrate best with a small, accessible selection. Rotate a handful of good toys rather than offering everything at once.