Tipping is not expected in Britain the way it is in some other countries; however for the majority of people tipping in some circumstances is customary as a sign of appreciation. Workers do not officially have to rely on their tips to live, and all staff in the UK must be paid at least the National Minimum Wage. This varies by age: it is £8.72 for those aged 25 and over, £8.20 for those aged 21 to 24, £6.45 for those aged 18 to 20 and £4.55 for those under 18.