What is the maximum length of stay for European passport holders on a tourist visa in Thailand?

and just like that we're done, this is turning into a slow motion train wreck with every Tom Dick and Somchai chipping in their advice..

@Jadey ******

you, your partner and children enter thailand on a free 30 day entry stamp, take the one 30 day extension you're allowed and then bounce out and back by land to get a new 30 day entry stamp.

And one more bit

@Jadey ******

I'd just let the children overstay, (not get them an extension) because children under 15 can't be fined for overstay and children under 18 can't be banned.

𝗪𝗲 𝘄𝗼𝘂𝗹𝗱 𝗶𝗱𝗲𝗮𝗹𝗹𝘆 𝗹𝗶𝗸𝗲 𝘁𝗼 𝘀𝘁𝗮𝘆 𝟯 𝗺𝗼𝗻𝘁𝗵𝘀.

unfortunately that you would like to stay 3 months doesn't mean you can 😕

𝗪𝗵𝗮𝘁 𝗶𝘀 𝘁𝗵𝗲 𝗺𝗮𝘅𝗶𝗺𝘂𝗺 𝗹𝗲𝗻𝗴𝘁𝗵 𝗼𝗳 𝘀𝘁𝗮𝘆 𝘄𝗲 𝗰𝗮𝗻 𝗱𝗼 𝗶𝗻 𝗧𝗵𝗮𝗶𝗹𝗮𝗻𝗱 𝗼𝗻 𝗮 𝘁𝗼𝘂𝗿𝗶𝘀𝘁 𝘃𝗶𝘀𝗮?

You either go to a thai consulate in what ever country you're in to BUY a single entry tourist visa (where you'd get stamped in for 60 days and could extend that by 30 more) giving you the 3 months

OR

You'd come in 'free stamp' 30 day visa exempt entry (if you're from a country who gets that to thailand) and could take one 30 day extension at the immigration office for 1900baht giving you 60 days total