^^^ This.
Although not related to security, I do think it’s usually easier to walk from CR to MK if able vs monorail. With the monorail, you have to wait to board, then make stops at TTC, Poly, GF, then MK. It’ll usually be quicker to walk.
When we are at CR, we only take the monorail to MK if we have time to kill and just want to ride the monorail... which we do sometimes because we enjoy it. We would also take it when DA was younger but not in a stroller just to save some stamina. But we mostly walk - usually easier.