Real Estate- you need only one house. If you invest in another house for investment, it gives only 2% annual return by way of rent. Do people invest in houses for selling? Not many/
Gold- gold is like my flat. Even if it becomes two crores, it will still have only 3 rooms. In our culture, selling gold is considered only in dire straits. Then what is its value worth?
FD- you invest in FD of a bank, and the bank gives it as a loan to a businessman, who invests in equity/capital. You get 7.5% on it. The company gets 30%. So, why not invest in equity directly.
Of course, while investing in equity, you should have otherwise readily accessible money as you may need cash when the market gets one of its vertigo attacks an falls.
Tough I am 65, to me equity is the only investment. And investment, not gambling.