After surfing through the good side of BItcoin I was asked to give reasons why bitcoin won't last by a friend I searched through the web and found the following
1: Exposure to Bitcoin-Specific Scams and Fraud.
2: Black Market Activity May Damage Reputation and Usefulness.
3: Susceptible to High Price Volatility.
4: No Chargebacks or Refunds.
5: Potential to Be Replaced by Superior Cryptocurrency.
6:Environmental Ills of Bitcoin Mining.
7: Bitcoins Are Not Widely Accepted.
8: Wallets Can Be Lost.
9: Risk of Unknown Technical Flaws
10: No Physical Form
Guess what non of those mentioned above was big enough to discourage my friend from joining Cryptocurrency (buying bitcoin).
Which of the following disadvantages are you afraid of and how do you think it can be resolved
This are not the disadvantages but they are the advantages of which Bitcoin has become so famous.
1)If you tell about scam and fraud then even it happens in fiat world,
2)fiat/precious metals are also used in black market.
3)Even in equity market the price is fluctuating high
4)No charge-backs or refunds is the main quality that can prevent scam like what in paypal is happening it.
5)It can happen but even then bitcoin will be king as other superior coin will be controlled by developer
6)This point can be disadvantage
7)About widely acceptance then after some years it will become the main stream payment system for online business.
8)Loosing wallet is the fault of users negligence.
9)Till now their is no technical flaws and it will be cleared even if in future it happens.
10)That is the main benefit of not in physical form so that it cannot be duplicated like it happens in fiat currency.
So i think you will be getting your answers to your query's. Which can help you and your friend to know much about bitcoin and its technology.