Thailand Immigration CAN ask these questions: (I not say, you will be asked)
1. valid and genuine passport
2. IF you got a visa issued, a print out
3. Print of the Thailand Digital Arrival Card tdac.immigration.go.th
4. the Boarding pass
5. Proof of onward travel within the period you get stamped into this country
6. Proof of accommodation
7. Proof of finance, 20.000 Thb (40.000 Thb for family) or equivalent currency in CASH.
Not every visitor is asked to show all 7 points, it all depends on the Immigration Officer, but IF you get asked you have to show. IT saves a lot of time if you are prepared.
Sorry, but there is an system in place to apply for the DTV, if you do not like to follow those instructions, simply tell you husband to go and live in another country where they have rules which you like.