I'm certainly not convinced about this information that he gave to me...I want better ideas and enlightenment on why I should buy bitcoin.I need help please!
We can't really give you the enlightenment if you are not interested with Bitcoin in the first place. Most of the people come to Bitcoin space are looking for the investment purpose and whilst it's not true for some people but majority of people out there are looking to get money really quick. Ask for yourself and maybe do some research online about why do you even interested in the first place, otherwise we won't tell you anything.
What he said was like he was challenging us, and bitcoin needed him, not he needed bitcoin. You're right, for someone who already knows about bitcoin but doesn't want to learn everything by himself and expect others to enlighten himself, no matter what we say, we won't be able to convince them and just waste our time. Investing is simply for making a profit, and if they don't need to make money, then don't invest, leave that opportunity to others, and never regret when things go up in price and bring profits for others.