If i do have the money then those 3 choices being said above would definitely included on my long term list holdings which i do save up for my children and future granddaughers or sons but if i do really need to choose one then i would go for cash and real estate.Im not saying i dont have trust into cryptos but this time when it comes to security i would go for traditional businesses which already exist for a long time where you can somehow assure about the future of your family and kids.