People taking photos of the Royal baby annoucement

The transcript consists of a simple expression of gratitude, 'Thanks mate.'

What does the phrase 'Thanks mate.' imply about the speaker's feelings?

In what contexts might someone say 'Thanks mate.'?

How does the use of the word 'mate' affect the tone of the phrase?

What cultural significance might the phrase 'Thanks mate.' have in different regions?

Can you think of a situation where saying 'Thanks mate.' would be inappropriate? Why?