For a kid it might make sense to use something simpler than Blender. I like Asset Forge [1] and Kenney Shape [2], both made by "Asset Jesus" Kenney. Or just use

For a kid it might make sense to use something simpler than Blender. I like Asset Forge [1] and Kenney Shape [2], both made by "Asset Jesus" Kenney. Or just use the free assets he has made [3]. [1] https://kenney.itch.io/assetforge https://kenney.itch.io/assetforge [2] https://kenney.itch.io/kenney-shape https://kenney.itch.io/kenney-shape [3] https://kenney.nl/assets https://kenney.nl/assets