Tourists are interested in the places they visit and use how things are done at home as a reference for what's different while away. The amount of advanced preparation is limited to what will support the tourist's ability to successfully navigate for the purpose of a short-term experience in a new place. There is always a goal to return home. Internships and contracts can provide tourist-type opportunities. Fixed in scope and duration they allow you to experience new lands while still being tethered to how the work world operates in your previous experiences. These experiences may lead you to make a permanent move, but that outcome is not necessarily the fixed goal from the beginning.
Changing sectors is not for career tourists.