Is it taboo to put the novice monk at home facing the door?

You mean Maitreya Buddha and Bodhisattva ... there are no taboos, because Buddhism doesn't pay attention to feng shui and orientation.

Please note,

Place it above the waist of an adult.

Avoid smoking, drinking and eating meat in front of Bodhisattva, because it is disrespectful.

By the way, "Misha" is just a little monk.

After becoming a monk in Buddhism, a person (regardless of age) becomes a monk after a period of study and observing the "Misha Ten Commandments".

The word "monk" originally meant "pro-teacher". Not all monks are called "monks".

Welcome to ask questions, I hope it will help you, there is no Puguang Buddha in the south!