In Jainism, monks follow strict vows of austerity, non-violence, and non-attachment (aparigraha). Eating without relying on utensils is part of that discipline for a few simple reasons:

• Simplicity and detachment: Not having or using vessels keeps life minimal and free from possessions, helping one focus on spiritual practice rather than comforts.
• Non-violence and hygiene: Food is often received as alms. Eating with bare hands or on simple, natural surfaces minimizes handling of objects that could distract from mindfulness or provoke attachment.
• Respect for the alms system: Monks depend on laypeople for food. Using minimal or no utensils emphasizes humility and the spirit of receiving with gratitude, rather than owning or fancying elaborate wares.

Differences between Digambar and Śvetāmbar communities:

• In many Digambar lineages, monks traditionally avoid relying on personal utensils and may eat with the hands or on simple, natural surfaces; emphasis is on renunciation of material aids.
• In Śvetāmbar communities, practices can vary by monk and monastery. Some may use a small begging bowl or simple plate as part of their alms routine, but the core principle of non-attachment remains.

If you’d like, I can explain how this fits into the broader Jain vows (like ahimsa, satya, aparigraha) with specific sutras or stotras.