His dad invested $200k at 10% at a later stage. I'm pretty sure it qualifies as rich daddy. Source: https://twitter.com/elonmusk/status/1211064937004589056
Btw Musk had little to do with the success of X. The revenue of PayPal was merely $61 million at the time Musk was fired as CEO of X.com(later PayPal).
Elon was never going to have to eat rice and beans, or go work in a cubicle for a big corp to pay the bills if any of his ventures failed.
You're reading that wrong. Elon is claiming his dad invested 10% OF a $200k round of seed funding. The actual amount was $28k. (See wiki: https://en.m.wikipedia.org/wiki/Zip2 )
Source - https://www.statista.com/statistics/782411/parental-income-o...
Median household income is $70k, so I'd expect you'd need to be upper middle class or quite good with money to loan $28k to your kids. I certainly won't argue that the Musks were poor, but there's a very big difference between "able to help their kids through college and loan $28k" and "silver spoon trust fund kids".