If you’re concerned about such things, also be aware that if you modify it to engage immediately, it will not be legal on some trails. Because it digs up the trail that volunteers maintain. 
Discussion
i live in an extremely hilly landscape, and the bike is a folder and almost every joint can't take excessive force without potentially risking damage or an injury - and not to mention its tires are street tires and it already makes enough clunk noises to make me nervous as it is, i'm not going offroad on this thing except in an emergency
Oh, those folding bikes are so cool. I totally want one of those.