Well, generally people who are young are investing for the long-term. Which means that they want growth in the stock price.
Generally companies that are growing very rapidly are young and are putting most of their profits (if they have any) back in to growing the business. Which leaves little or nothing to pay out to shareholders in dividends.
Companies that are paying out a good bit in dividends are usually established businesses with steady and reliable incomes. Along with that is usually lower growth prospects.
Of course that is a massive generalization, and there are many good, growing companies which pay dividends and many young rapidly growing companies that are going to be bankrupt before they ever pay a dividend. But that is the general theory.
Your post indicates a massive misunderstanding of how a dividend yield is calculated. It is often reported as a percentage, but companies give out $X per share. If the price halves, the yield doubles, not halves. Of courseusually when a price craters like that it is for underlying weakness in the business which is likely to lead them to cut their dividend.