Why is it difficult for a firm with weaker cash flows to mimic a dividend increase undertaken

Question:

Why is it difficult for a firm with weaker cash flows to mimic a increase undertaken by a firm with stronger cash flows?
Dividend
A dividend is a distribution of a portion of company’s earnings, decided and managed by the company’s board of directors, and paid to the shareholders. Dividends are given on the shares. It is a token reward paid to the shareholders for their...