Chitting and module planting are 2 different things both aimed at improving the chances of seeds succeeding in the big wide world.
After several failures with carrots and parnsips (the ground being too hot, cold /wet immediately after sowing) I tried chitting by mixing the seed with vermiculite in polybags and them damping the mix. Keep in a cool place and plant out when the tiny white roots are first spotted.
Most other things I start off in modules as I have loads of slugs, this includes,
beetroot, runner and french beans, early peas, all greens
phil