https://blog.ycombinator.com/a-new-standard-deal/
Even if you're eating ramen, that's like 3-6 months of expenses at best. For anyone that isn't like fresh out of college, you'd think they'd have access to that kind of capital through savings, family/friends, or even credit cards.
I guess it rather strengthens your point about it being all about the brand name rather than the capital.
Getting to YC or similar is a bit of a ticking time bomb and deliberately so. You aren't funding a cool lifestyle, you are building a sustainable businesd that repays the investment.
I'd bet that 99% of YC companies do not generate the free cash flow to repay the investment during their three months in YC.
YC does not want you want repay the investment. YC wants you to raise a highest valuation you can as quickly as you can.
Obviously everyone has different interests, personal circumstances and risk tolerance but I'm amazed by the people who get involved in companies with little runway.
Very early startup employees, what's motivating you?