Answer

Yes, in general a Jain can wear a kanthi.

Explanation

In Jain Dharma, wearing a kanthi is not usually prohibited. What matters more is:

• your intention,
• simplicity,
• and whether it supports or disturbs non-attachment.

If the kanthi is worn as a sign of devotion, discipline, or remembrance of the path, it can be acceptable. But if it becomes a matter of show, pride, or attachment, then it is not spiritually helpful.

Spiritual Understanding

Jainism emphasizes:

• aparigraha, or non-possession,
• inner purity,
• and freedom from ego.

So any ornament or symbol should be kept very simple and should not increase attachment.

Takeaway

A kanthi can be worn, but in Jain spirit, it should be simple, respectful, and free from vanity.