Table 5.

Concerns of mobile phone use as an additional theme (N=448).

Theme or subtheme			Respondents n (%)		Representative quote
Theme: concerns			34 (7.7)		N/Aa
	Distraction	13 (2.9)		“14. Kids are inundated in a life reliant on their phones if they're introduced any earlier.” (Mb; age 19 y, got phone at 11 y)
	Unrestricted internet access	4 (0.9)		“12, but it’s important that they don’t start with a smart phone. Being safe on the internet requires maturity - kids shouldn’t have access to the web on their phones until they’re ~15.” (M; age 17 y, got phone at 12.5 y)
	Addiction	4 (0.9)		“…apps are addictive, unregulated substances, and shouldn't be given freely to young children.” (nonbinary; age 18 y, got phone at 11 y)

^aN/A: not applicable.

^bM: male.