If Gaby Hinsliff (Self-help works for us as individuals – but as a society we’re failing, 23 December) wants to see at first hand the power of singing together (badly) for passion and the joy of coming together to celebrate, she could do much worse than go to any lower league (or non-league) football match. Even when we’re not playing well, the capacity of being together and singing together to raise the spirits is unequalled. I should mention that the joy is probably greater at AFC Wimbledon than most other clubs.
Rupert Jeffery
London
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