Most ardent and perceptive travellers did not start as professional travellers, and definitely, most travellers are not yet there because that is something that comes only comes with on-the-the-road experience. Becoming a travel pro is a process that is built gradually, step by step. It comes with interesting facts such as missed transport - train, buses, flights, or a mismatched taxi ride.
It comes with foolish mistakes and behaviours such as lack of planning, culture shock, wrong hotel bookings, and misguided travel experiences among myriad behaviours that cause you small or big damages during your travels.