Of course it is necessary because if you are not carefully selecting ICO you want to participate a high chances you will end up with scam project ! If you have researching skills for sure you have a good future in here ! If you are looking for good ICO i would recommend Trustedcars one of the renowned company in Germany for changing car dealership into mobility provider , with their app users can easily rent or purchase any car they want that is available in their Car Dealers inventory with an affordable price , reliability and no long contract to prevent car ownership liabilities