*3.2. Playground Interviews*

### 3.2.1. Participant Characteristics

Interviewed participants (Table 4) were mostly female (*n* = 15, 75%), born in Australia (*n* = 12, 60%), university educated (*n* = 14, 70%) and supervising one child (*n* = 14, 70%) with a mean age of 2.5 years.

**Table 4.** Demographic characteristics of interview participants (*n* = 20).


### 3.2.2. Reported MDU Behaviours

Almost all participants reported using their mobile device at the playground that day (*n* = 19, 95%). Participants made short statements around their reason for their MDU in the playground on that day such as "*Had to answer a couple of business calls*" (P13) and "*Just to check if I've received any messages*" (P21). The most frequently reported reason for MDU included methods of communications (calls, text, email) (*n* = 12, 60%). Other reasons included photography (*n* = 9, 45%) and using the device to undertake specific tasks for personal administration (*n* = 3, 15%).

### 3.2.3. Perspectives on Caregiver MDU

Four dominant themes emerged from the participant interviews; these were: convenience, distraction, security and making memories.
