To ask Her Majesty's Government how many applications for children to register their entitlement to British citizenship there have been in each of the last three years; and of those, how many have received a waiver of the fee.
The available published information on the total number of citizenship applications and grants is published as part of the quarterly Immigration Statistics, Citizenship tables, latest edition available at https://www.gov.uk/government/publications/immigration-statistics-year-ending-june-2018/list-of-tables#citizenship
The table below provides figures for all registration applications (entitlement and discretionary) in the last 3 calendar years.
British citizenship applications by broad type
Applications for British
Of which: Applications for registration
Source: Home Office, Migration Border Analysis.
Immigration Statistics year to June 2018 - table cz_01_q.
Applications for British citizenship by the applicant’s age are not routinely published.