We are from the same country. People are legit being skeptic since they don't know shit about things like these. At the end of the day we have a nice scam history around here.
Kairos, OneCoin and so on only for the last few years (if not the last year only).

With the difficulty increasing + the scams that go around being easily eaten by people like ours, their doubt is somewhat justified (of course if they'd research on their own once, they'd find find out what's the deal), but that doesn't mean after ETH goes unprofitable another coin won't be as profitable or simply decently profitable with enough rigs after the ROI hits. So at the end of the day, mining still pays off, but you have to invest what you can afford to lose.