1. The advantages of learning in an digital environment is that you can be anywhere and at the same time have the opportunity to learn. In addition, it reduces the travel time. It also reduces costs, for example, for travel or food. It's also more comfortable. So, in my opinion, this all exceeds the disadvantages.
2. It is clear that not everyone has access to technology, but I think that nowadays there is an opportunity to buy the simplest phone or computer and study. Also now city libraries are equipped with computers with Internet access. There is a way out of the situation, but the difference between people will still remain and it will not get rid of it.
3. I think that in the next 50 years we are unlikely to switch completely to online education. But it will still be popular for self-development and studying what does not take place in schools or universities.