Many times the story OP told is a repercussion of investors giving or trust their brokers to do the investing for them rather than them doing it themselves.
How person go take know investment wey worth their money if them no try am and fail or achieve success upon first trial. Abi u don forget the saying which goes, a trial will convince?
I agree with you on this assertions, you really need to work very hard to first of all have an in-depth knowledge on the business you are trying to invest in. It is something that you can start with just Googling about the sector you intend to invest in. Understand the intricacies of the business and get someone who have gotten first hand experience on the business then ask them questions about the business you intend to get into. There's something called SWOT Analysis. It is good to always measure the Strength, Weaknesses, Opportunities and Threats that lies in the business.
This country (Naija) things hard, so no go fall victim with small money wey U don try manage save fall victim for wetin wey no worth investing. Try ask before U invest so that U go benefit well.
This Naija wey we they now don carry belle and he no look like something wey fit deliver now. Unfortunately, we have a few number of people that can be trusted now because for God's sake plenty people don tire for each other. E they very annoying say people no get plenty money but yet person go they out there they always look for how them go dupe you of your own small money.
Funnily enough oo. We need to shine our eyes these days as we they try to invest in anything, people go even come with crazy ideas say you go fit invest 100k come get a plot of land wey worth over 100 millions of naira for a time not feasible enough. You go come get other people again wey them go still try to sell the same land titles for. Plenty people don fall victim.
Na so them they also try to run people street with this cryptocurrencies investments since plenty people no understand the real concept of it,some mugus go wan scam innocent people with outrageous investment plans.