it may be required by a government as a part of citizenship requirements, generally in lieu of military service;And Yes "Community service" is better than Tutoring because Community service helps the community and let's kids learn
it may be required as a substitution of, or in addition to, other criminal justice sanctions – when performed for this reason it may also be referred to as community payback;
it may be mandated by schools to meet the requirements of a class, such as in the case of service-learning or to meet the requirements of graduation.
in the UK, it has been made a condition of the receipt of certain benefits, including disability-related ones.(see Workfare in the United Kingdom)