This Practice Note looks at key considerations in relation to applications by dependent children of persons in work, investment and study routes. There is provision for dependent partners and children in the majority of these routes. The main exceptions are the Youth Mobility Scheme, which has no provision for dependants at all, and the Student, Graduate and Skilled Worker routes, , which have certain restrictions. For the position in those routes, see Practice Notes: Applying under the Skilled Worker route — Dependants, Applying under the Graduate route and Student: eligibility — Dependants. Prior to their simplification, the Rules covering dependent partners and children in these routes were found in Part 8 of the Immigration Rules (for dependants of relevant Points-Based System migrants and Appendix W workers), or Part 5 (for dependants of persons in other economic routes, in particular UK Ancestry and Representative of an Overseas Business). For the archived version of our Practice Note covering dependent children of PBS and Appendix W migrants, which covered the relevant law prior to simplification,