Digital invitation vs printed — Is it rude to go fully digital?

Our parents are insisting on printed invitations for the older relatives, but we want to go fully digital to save money and be more eco-friendly. Costs comparison: - **Printed:** Rp 3-5 juta for 300 invitations (design + print + envelopes) - **Digital:** Rp 500K-1.5 juta for a beautiful e-invitation with RSVP tracking Is it considered rude in Indonesian culture to only send digital invitations? Especially to older family members? What platforms do you recommend for digital invitations? We've looked at: - Bridestory digital invites - Paperless Post - Custom WhatsApp-friendly designs Thanks for any input! 🙏