Per dovere di precisione: Hanno affrettato perche` prima dei 16anni puoi cambiare stato (edit: Federazione) senza troppe grane burocratiche
Dopo sarebbe stato piu` difficile.
Mentre se vorra` tornare indietro, leggendo il regolamento non credo avra` grosse difficolta`
da
https://assets.fis-ski.com/image/upload/v1593675483/fis-prod/assets/ICR_02072020.pdf
Prior to submitting an application to change licence registration, competitors must possess the citizenship and passport of the country for which they wish to compete. In addition, competitors must have had their principal legal and effective place of residence in the new country for a minimum of two (2) years immediately prior to the date of the request to change registration to the new country/National Ski Association. An exception to the two year residency rule may be waived if the competitor 6 was born in the territory of the new country, or whose mother or father is a national of the new country. Applications will not be accepted if a parent has obtained a passport for the new country, but is not resident, and/or there is no family ancestry. Furthermore, competitors are required to submit a detailed explanation with the application about their personal circumstances and the reason for requesting a change of licence registration.