Dividends generally keep paying every month or quarter when markets are down, or at least the good ones do. The benefit is consistent income instead of drawing from something like savings in a downturn, or even worse selling that stock and destroying future returns. These are more for people that are looking to stop working, which retirees are a large segment of society.I don't understand the point of chasing high dividends unless they're qualified dividends with lower taxes. Most are not, which means you're stuck paying ordinary income tax on them. You'd be better off selling holdings when you need to, and just pay capital gains which, if they were held long-term, tops out at only 20%
As for taxes, you can live really well in other first world counties at or below our standard deduction, moreso if you're not paying rent. And it's a switch you can flip on/off whenever you want so just flip to reinvest if you want to keep dividends off your income. Travel for a year, go back to work for a year, etc. It might seem like there's no difference when looking at total return, but it can be significantly increased flexibility with less loss on withdrawal than the outright ownership alternative. But a 30 or 40yo with 20 plus to go, yeah just some market etfs and forget about it.