They do have unisex versions! (on the left). Saw them when visiting that country

Wow the wiki header is terrible, and doesn’t even mention the pink vs blue custom.

Way down in the second h2

When pink muisjeswere introduced in 1860, they became the standard with births of female babies while the original white muisjes remained in use with male ones. With the introduction of blue muisjes in 1994, blue has become the standard with boys instead.