Seems difficult for student investing in Bitcoin because they not over 18 years old above and need document ID required for KYC with all exchange for saving Bitcoin at the future, despite as student not all have good financial and get under $2 from their parent seems bit little for investing in Bitcoin. Not any place can buy or transaction bitcoin with small fund looking on Bitcoin fees sending above $5 and they need invest above $100 in bitcoin for fees recovering.
But depend on each personal, some student have good investment soul and they will purchase their pocket money for saving in one place but when understand about bitcoin price progress up every year will make them interested for investing in bitcoin. Need finding local exchange for student how deposit their money without required KYC because in my country Indonesia under 18 years old they not have ID card and student ID not available for local exchange KYC.