I do agree that faucets encourages people to get involved and learn about cryptocurrency, and the reward serves as an incentive. But in most cases as the attention on the cryptocurrency industry has massively increased, the risks far out weigh the rewards. If you do come across a good one, by all means get involved, but as OP stated, protect your device. And see it as a building block, there's a lot to them is industry, do not get stuck at one level.