It depends on where you are travelling. If you are travelling in a country where public transport is safe and very good then, of course, you should prefer public transportation because it would be inexpensive. Otherwise, if you are travelling with family, then you should hire a car or MPV etc. If you are based in the UK, then you wouldn't see any option better than CarvansForSales. They don't only offer recreational vehicles or motorhomes for sale, but you can also hire them at affordable price. You can see more details from here
https://www.caravansforsale.co.uk/for-hire. Actually, I love the way they provide every single detail about the vehicle, and their hiring quotes are also reasonable.
On the other hand, if you go for camping, hiking or off-road trips then renting an RV or Camper Van could be a perfect idea. For my off-road trips, I usually book campervans from here
https://www.rvrentacampervan.com/. This service is only available in Africa, Europe and North America and it wouldn't be available for you in Asia.