The change of strategy

I just wanna propose a change of strategy in organizing language camp in the future. Many of the participants that came for the language camp never regretted for coming to the camp. Many of them liked the camp and enjoyed the activities in the camp. I was just wondering instead of forcing the people to come to the camp (by sending them letter making it compulsory for them to come), why don't in the future we make the camp a non-compulsory one. We can advertise the camp around campus and open to all utm students to join. We want the people to come with a willing heart, with the desire to learn English. We don't want them to feel compelled to come for the camp. In this way, we will have participants who really want to learn the language right from the first day of the camp and thus we may yield better results. Furthermore, by doing marketing drive to promote language camp in campus, we will be able to establish the reputation of language camp and bring the camp to a professional level.