Hi.
I just wanted give my experience at the Penang Thai Embassy getting a tourist visa.
We are a family of 4, from the UK. One person only needs to go in. Was the same for our friend from New Zealand.
I had copies of the birth certificates in each child’s form. So you don’t need everyone to go.
We had 24hr overstay stamps from Jan 2023. We got accepted for our tourist visa. Picked them up the next day.