The convenience of using services at home or on your phone won't make you get too addicted to something. It is, in fact, good for saving your time and effort. So yeah, live/online casinos will continue to grow, but it doesn't mean everyone will get addicted to gambling since it is based on many factors, including genetics. However, my concern would be for those who are already addicted or problem gamblers, as they can play 24/7. In land-based casinos, security can kick them out, or some may not be open for 24 hours. So, to answer the question about the size, it will be big enough to rival land-based casinos (only), but land-based casinos usually merge with hotels/resorts and have many tourism-related offerings, so it won't be direct competition.