Investing in it like a stock? That would be stupid unless he is a professional day trader or currency speculator. In that case I don't have the expertise to judge his actions. It would be very dumb of a regular person to invest in a new, unstable currency.
Purchasing $50 worth to keep in a virtual wallet and buy something online with just to see how it works? That would probably be a good idea. Especially if he was going to start posting on the internet about Bitcoin as if he had a clue what he was talking about.
It seriously drives me crazy that the same people who complain about the Federal Reserve, national debt the devaluation of the dollar, hyperinflation, etc... can't see that Bitcoin was designed specifically to overcome all of those things.
When I hear people compare them to tulips, I want to tear my hair out. Tulips actually die and go away. They all do. They are designed by God to do that eventually. They can be grown by anyone almost anywhere at any rate. They are very difficult to transport. They can't be fractionalized. Tulips make a very bad currency on any measure of the fitness of a currency.
Bitcoin are created at an ever decreasing rate. The more Bitcoin in existence the harder it is to make a new one. There is a finite amount of Bitcoin that can ever exist. It can be fractionalized down to 8 decimal places (.00000001. BTC). It is immune to central planners manipulation. Governments can't just create more when they want to. In every measure of what would make a good currency it is as good or better than gold except that Bitcoin is better in the area of transportability but doesn't have the industrial uses like gold.
THIS is a very good explanation of the theory and advantages of Bitcoin if you wish to become educated in what you are freeping about.
If you care to see how sausage is made, see here
>> It is immune to central planners manipulation.
But not regulation.