Why are all the merch either only in US or Japan & China

Like I want some TADC merch too that's officials on my locak supermarket that's pretty cheap. I want some chiikawa readily available yet the only place is miniso or some branch that sells these things for like half of what I get paid a day like if it's not US , Europe or whatever western. When it's Asia IT'S ALWAYS CHINA AND JAPAN ONLY !! give me merch too... Obviously they tend to be expensive but wym I can get a whole bucket of chicken like 8 pieces at jollibee and I still can't afford kinger keychain?? When I mean make it affordable like 150php to 200php cus I'd be fine... not 2k bro...