A Thai business owner in Chiang Mai might open a small resort serving local people as well as tourists. It would probably take him about two months to set up his business after finding the location, staff and getting the company registered. He would find it reasonably easy to start his business.
At the same time, a foreign investor living in Vietnam and considering whether to invest 3 million baht in Thailand to start a restaurant might have a different experience. She would likely find the process a bit complex and challenging. Most websites with the relevant information are written in Thai, the paperwork involved in registering a company can be pretty daunting for foreigners, and getting work permits and a business license can take longer than expected.