Because of big volatility sometimes it is more profitable to trade EDC than to lease EDC for a long time. EDC has a big trading volumes and a good liquidity. It has listing on many exchanges.
Not all people can trade on exchanges and make profit on trading. Leasing program is good for those who do not want to trade or can not trade on the exchanges.
This is of course true, but everyone who begins to be interested in cryptocurrencies will sooner or later get on the exchange. And trading is an integral part of the cryptocurrency world. At the beginning, I was also afraid to do it, but over time I got an understanding of how the market behaves and trades.