Look, you can be old and rich or young an poor, but being old and poor is bad shit.
A surefire way of doing the wrong kind of things is to spend your money early or try to live a good life quickly without thinking about the future. Or if you have an ok job or income to think that is enough, even if you cannot save.
All young people, understand that time an money are linked. It is not the same to invest early than late, it is not the same to invest more early that try to invest more later. 100 is worth 100 today, but 800 in 20 years if you play it safe but well. Make no mistake, you will need to start creating your wealth.
The younger generations can really struggle to save money for a variety of reasons, firstly and probably most importantly is they don't earn very much to start. They will often begin in lower level retail or hospitality type jobs, because those companies want cheap workers that turnover. Secondly most people have a learning curve through life and when you're young you can be easily influenced by the media with endless marketing directed at you to buy the latest fad or even high end items. It takes a while to mature when it comes to finances. However lastly, saving a small amount is a good idea, but you should really take (reasoned) risks when you're young as you have more opportunity to make money back in future.