Unlike flat currency, the value of Bitcoin will keep increasing because more can not be printed into usage
Bitcoin is not a paper money that can be printed, correct yourself. Only fiat currency can be printed.
My point is, do you think other crypto currencies will adopt such policies to keep up, or rival Bitcoin?
Most cryptocurrencies have fixed supply while others are assured that some will be circulated from the dev with time. Bitcoin is different from other cryptocurrency not because of its fixed supply but because of its nature.