Sebastian was a little surprised by what Jack had said. But to say the truth, looking at Jack, a young man like him would definitely not like restrictions. It was during the age like the one that Jack was in currently that many of the youths wanted to enjoy themselves.
But for Jack to be able to reach the level that he was currently in at his age, it was clear that he had actually sacrificed a lot, trained a lot, not having the chance to enjoy his life. So, it was definitely going to be something disturbing for him to be restricted.
Nevertheless, during this age, inside the stronghold domain, those that wasted their time in enjoying themselves who would end up having to work extra hard in order to be able to catch up to their peers who had actually been training since young age.