Seems to be a tradition rooted in the original Maniac Mansion. In Thimbleweed Park the multiple characters became tedious due to having to walk multiple people all over and pass items between them, though I enjoyed being able to see the world through the different lenses of how Ray and Reyes vs. Ransome vs. Delores react to things.
Day of the Tentacle (which coincidentally I've replayed in the past week) executed the multiple characters mechanic the best I've seen, since each character was confined to their own area (past/present/future) and you could instantly pass items between them.
Day of the Tentacle (which coincidentally I've replayed in the past week) executed the multiple characters mechanic the best I've seen, since each character was confined to their own area (past/present/future) and you could instantly pass items between them.