Yea obviously why wouldn’t you be able to ? What do you think if you’ve had a business in Thailand they just won’t let you in. Stupid question isn’t it lol
No and if it did come down to them telling you that you must have one then you just have to book one and show them and pay the boss some money so he can fulfil his destiny of getting free money from tourist. He will be happy and you’ll be allowed in. That’s the worst so don’t worry about it.