The Ainu had either an arranged marriage or when both sexes had mutual consent to marry each other; however, it was customary
for the parents to choose which person their son or daughter could marry. The
age of marriage for women was about 15-16 years old. For men, it was common for
men to marry from the ages of 17-18 years old.
When a man proposed to a woman, he would visit
her house and only eat half of the full bowl of rice that the woman handed to him. The
other half is for the woman. If she accepted his proposal, she would finish the
rest of the rice. However, if she does not finish the bowl of rice, she rejected
his proposal. After they become engaged, customarily, the man would send her
a small engraved knife, a workbox, a spool and other gifts. The woman would also
send gifts such as embroidered clothes to the man.