As for me, I started focusing on passive income last year, but have owned rentals for 5 years. $25k now outside retirement accounts in mostly real estate. Looking to invest another $500k cash into real estate to get about $65k, and then 1031 under performers next year to hopefully boost that a bit higher. Heavy in real estate, but feels lower risk than the stock market to me if you have cashflowing properties. Real estate is inflation adjusted, and built in cashflow raise when the loan pays off.
The financial services industry contributed $809 billion (37% of GDP) and employed 14.17 million people (3% of the workforce) in 2016, and the banking sector contributed $407 billion (19% of GDP) and employed 5.5 million people (1% of the workforce) in 2016.[153] The Indian money market is classified into the organised sector, comprising private, public and foreign-owned commercial banks and cooperative banks, together known as 'scheduled banks'; and the unorganised sector, which includes individual or family-owned indigenous bankers or money lenders and non-banking financial companies.[202] The unorganised sector and microcredit are preferred over traditional banks in rural and sub-urban areas, especially for non-productive purposes such as short-term loans for ceremonies.[203]
Most of us think of investment income as just the cash flow we get from bank interest, bonds, share dividends and property rents, some of which comes via a super pension.  But a more complete view is to also consider how growing the value of your investments can add to your spending potential.  This total return approach generates income from both income and growth to optimise spending from your portfolio across all market cycles, aligning cheap and expensive investments to your goals.