As students, they don't have to focus on investment because there are more important things for them to do. Learning, finishing their education course and getting a degree which are all more important for them at this period in their lives.
Lives are so long for them to start investment anytime and opportunities are always there in the market. When they get a degree, find a job, get salary, they can have savings for investment, it is never too late.
They can do e-learning with free sources on Internet and find jobs in cryptocurrency but it's not main focus for them. It should be their part time activities when they already fulfill their learning at college or university.
Cryptocurrency job listWell, you have a point. However, instead of spending for their smoking habit, they should divert that one into learning to save, at least when they graduate from school, they still have savings to buy presents for theirselves or just continue saving to fund their future investment.