Footnotes

• Twitter @Cole_Therapy_Ed, @ChrisHollandPhD

• Contributors Editorial conception: MC; draft manuscript: MC, CJH and TC; preparation: MC, CJH and TC. All authors reviewed and approved the final version of the manuscript. MC, CJH and TC are responsible for the overall content as guarantors and accept full responsibility for the finished work and controlled the decision to publish.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests None declared.

• Provenance and peer review Commissioned; internally peer reviewed.