Once your child has gone to college or is away from home for the first time, it is harder to influence them and you have no control over the time they come home or how they drink and eat. Do remind them that 3 in 10 young adults don't drink alcohol and of those who do, 8 in 10 choose not to binge drink - and 8 in 10 don't use drugs - most just want to socialise and have a great time with their mates and are much more responsible than we realise.