And the best way to learn, practice and improve for the last two levels is to get involved, which means the ones need more chances are more likely to be separat

And the best way to learn, practice and improve for the last two levels is to get involved, which means the ones need more chances are more likely to be separated from the group and this is very discouraging. Instead, babies and toddlers generally get more patient guides. That's a more important reason for adult second language learners. The general solution I can think of is to have a private coach to help them learn with feedback and correction so that learners are more likely to catch the limited chances to begin to get involved with groups. High quality chat bot could be a more affordable option for most learners, if the bot is good enough, which I'm not familiar with. edit: combined two sentences into one.