Family trips generate more visa questions than any other category, and most of them come down to one point: every traveller needs their own application.
Every child needs a separate visa
There is no family application and no child endorsement on a parent’s visa. A newborn travelling on a parent’s passport still requires an individual e-visa, submitted with that passport’s details.
Photos of small children
The same rules apply: plain background, face visible, eyes open, no toys or hands in frame. Lay a baby on a plain white sheet and photograph from directly above — this is the standard trick and it satisfies the requirement.
Documents to bring
Carry birth certificates and, where one parent is travelling alone, a signed consent letter from the other. Vietnamese immigration does not always ask, but airlines on the outbound leg frequently do.
Processing time
Submit all family applications together and choose the same processing tier. Mixed tiers mean results arrive on different days, which complicates check-in.