I'm 23, completing a Business BSc, should I start a Computer Science BSc? I‘m just curious and looking for some other opinions. I am currently pursuing my last year of my Bsc in Business. Because of that, I’m strongly thinking about my future and playing with the thought to work in the computer science industry. Because I live in Switzerland I would have the possibility to start after my Bsc a Bsc at ETHZ. Now I don’t know if I really should consider this career path since it would set me back for a lot of year to enter the job market (or do you think a Bsc at ETH would be enough?). However I really do believe that the skills I would learn and the institution itself are outstanding.
My friends and family probably wouldn’t understand me and sadly I have no friends which are pursuing this degree.
I don’t know what answer I should expect but maybe opinions related this issue with myself  Thanks!!
You can work in the technology industry with a BSc in Business, you don't need a BSc in Computer Science. That said, it depends what exactly you want to do. Regardless, rather than acquiring two bachelor degrees, consider a MSc in Computer Science, rather than a BSc. That's the more common approach.