Growing indoors: I use regular photo seeds. I start in quart pots, wait until sex shows and then transplant the females into their final home. I keep 2-3 males for breeding, kill the rest. I dont like wasting resources on males.
For clones, they go straight into their final pot once they have good roots.
If I grow fem seeds, I would start in a quart pot and then transplant into the final pot once the seedling has 8 mature leaves. I start in small pots and select the most vigorous plants, toss the rest. I make all my seeds, so I have the luxury of being more picky.
Growing outdoors: I start seeds in quart pots and then transplant into the 1gl pot once the seedling has 8 mature leaves. Once sexed, females go into the raised bed that is in the greenhouse. Males remain in 1gl pots, I keep the best ones and kill the rest.
Starting seeds in small pots serves a purpose to growers like myself. If I wasn't interested in breeding and just wanted to grow some good smoke, I would only grow fem seeds or clones and skip the small pot phase. It would be the most practical approach.