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They should, Especially in the Cryptocurrencies and stock markets.
Precise knowledge is the only way to success. Investment just by listening to some stranger is the stupidest thing for an investor.
And for everything else, people should not take a decision on the advice of others. Exercising their own judgement in every situation is a necessity :)

Yes.

Are you on discord or steemit chat sir ?

I am occasionally on the Steemit chat.

Good to know sir. Actually I have a little favor to ask you sir, but I don't think its the right time. So, I'll ask you tomorrow.
Thanks a lot sir for your time :)