My understanding of SEED programs is that they are sent to plant an environment of Torah in a community that needs one. This involves kiruv, but also the setting of a positive example of Torah living. My issue, assuming that this is a SEED program, is that the project is to bring Torah and the environment of Kedusha, but can be exploited for other, non-Torah activity. I do not question the need to “chill”, but this can be accomplished in shorter spans of time. As for a full summer, the strong nucleus of learning and Avodas Hashem must remain intact. If this is shortchanged, there is ch”v risk of serious damage to the spiritual growth of the young man (or woman). This arrangement cannot lend to good outcome of being mashpia on others.
If I send my son on a SEED program, I am not agreeable to his driving anywhere. Kiruv and vacation are not synonymous (though I can think of ways they can overlap).