changing the 2-3 largest hoses preemptively makes sense to me as you might severely overheat before getting off the road. Ths smaller ones likely give you enough time before you go dry so, unless they are easy to get to and inexpensive, might just wait until they leak.
Of course your personal situation makes a lot of difference on this type decision. If you rely on a 15-20+ year old car for critical transportation or long distances driving alone,etc. , you would want to address ANY issue that could strand you. maybe even carrying a starter, alt. and fuel pump even......plus tools lol!
and repair tape as mentioned, JB-Weld, and other similar repair gear would be good to have with you.