Sign MAC-UK's petition to tackle serious youth violence MAC-UK is celebrating its 10th birthday this autumn and as we look to the future we've been reflecting on what still needs to change. We are calling for real action to ensure young people are genuinely involved in all aspects of efforts to tackle serious youth violence. It's time to ask young people for their help in creating solutions that will work for them. Join us in demanding lasting and real change - we need to come together on this issue and shape a society which will only accept solutions which make a difference to young people affected by serious youth violence. Sign our petition here and don't forget to share widely on social media. Thank you for your support. MAC-UK team.