Stage 1 (the interviews), this stage of the study has now closed.

Stage 2 (the online survey), this stage of the study has now closed.

Children aged 15 or under cannot take part in Stage 2 of the study (the online survey). This is due to minor safety and the difficulty of obtaining verifiable formal parental consent for an online survey. However, parents and guardians of individuals aged 15 and under may participate on their behalf.