In most countries, a child cannot have their own Apple account – they must instead be part of a family sharing group. In the US, the minimum age for a solo child account is 13. However, certain countries have imposed higher age requirements for individual accounts, and Apple has listed these: 14 in Austria, Bulgaria, China mainland, Cyprus, Israel, Italy, Lithuania, South Korea, and Spain 15 in Czechia, France, Greece, Peru, and Slovenia 16 in Croatia, Germany, Hungary, Ireland, Kosovo, Liechtenstein, Luxembourg, Malaysia, Netherlands, Philippines, Poland, Romania, Singapore, and Slovakia 18 in Brazil
Source: 9to5mac.com