Small-scale investment should have extra patience because it takes a long time to pioneer it becomes big.
The biggest challenge of the smaller investments is that you will not see the big profit for a long time. You will have to wait a lot for it. However, this also has a very positive moment - you do not risk a lot.
Yeah, small investment it's not getting some big profit, at least he can try to learn how work money management from the small capital. After he knows how to manage some investment money sure in future he will gain some profit.