Yes, but your physical money turns into electronic money until the time you request it back as cash-out, by which time it turns back into physical money.

Please be aware that in more than 99.9999999999999999% of cases you don't get back the exactly same coins and bills that you deposited. 9% of cases you don't get back the exactly same coins and bills that you deposited.

For your physical cash to stay physical and identical at all times you can use a piggy bank.

Starlink

Yes, unless there's a special agreement for ASEAN countries?

Do gay people eat different food/in special restaurants?

There are only 2 mobile phone companies in Thailand.

You can't go wrong

They might weigh it and will likely do so if the plane is full. Just buy check-in luggage, doesn't cost even a finger and you can stop worrying...

Nope. Literally NOBODY knows

Delete your review, go back to the school and apologize for your misunderstanding. If you plead honestly enough maybe they let you enroll again.