A 3 + year old can be introduced to this ‘physical layout’ yet we wait til a 7+ year old to introduce this?

Occupational Therapist. Bachelor of Applied Science (Occupational Therapy). Clinic Address for appointments: Suite 18, Level 3, 924 Pacific Highway, Gordon, 2072, New South Wales, Australia. Email: Daniellelord-kidsenseot@outlook.com Mobile: 0407 527 182. PLEASE ADDRESS ALL CORRESPONDENCE VIA EMAIL.
A 3 + year old can be introduced to this ‘physical layout’ yet we wait til a 7+ year old to introduce this?
