Potting up has two factors to it - for the good of the plant and for your convenience. The only "should" is if you let them get to the point where their root system gets too big for the pot. Everything else is for your convenience. You start in small pots indoors in the winter for your convenience - some people start them in their final (larger) pots for their convenience - other people just start them straight in the ground for their convenience. So your moving them to larger pots now would be for your convenience. One thing is you said you "used to" grow in raised beds, which seems to imply that you won't be doing so with these. However, if you are going to move them to raised beds (or in the ground any way), there's no need to pot up since you are in a warm climate - just move them to the raised bed or ground when you're ready.