Now they want me to invest their own money on coins and they aren't ready to choose the coins they will like themselves.
After thinking this through and through I started feeling like they are doing this to hold me responsible if something goes wrong.
Is my thoughts right? If you are in my shoes what will you do?
I am not a lawyer nor do I offer investment advice but it seems to me that you are heading towards dangerous territory....
STAY AWAY from investing FOR others! If something goes wrong and somebody loses money, you will be made responsible and you will regret it. Investing in Bitcoin or cryptocurrencies is not hard, its the easiest thing in the world which even a trained monkey could do without help. Show them a youtube tutorial or something.
Worst case scenario, you might even be legally responsible and you could be seen as a financial advisor or be blamed with some other job description else which requires you to have a license from the government.