As for investment, it depends on the store rent, because you didn't mention it here. How big is the store without considering the rent? As long as 30 thousand is enough to distribute goods, if the area is relatively large, 50 thousand is not needed. When I first had a meeting, I was in a 24-square-meter house in a prefecture-level city. Not counting the rent, the start-up capital and working capital are 30 thousand.
If it's a brand, it means that you won't be so tired if you buy more goods first, but the investment is definitely large. And I personally don't like brand clothes, because they are too simple, just one style, because it is impossible to make big brands in town, so the appearance will not be very novel. But if you are not too sure about the goods you choose, it is good to choose a brand that suits you there. I'm not sure how much the specific brand store will invest, because I've never been a brand, and I'm embarrassed about it.
As for children's wear, if you have more than three pieces and put forward particularly good suggestions, don't do it, because the town has a limited population, so the saturation is high, but if you don't, you can make the best. Children's wear is very good and profitable.
It's only through my personal understanding of your suggestion that I decide what to open or whether you should mainly study your local market. Nothing is absolutely profitable, but in my experience, you have to do what others don't have in business. Now you make so many clothes, but you have to find ways to do better than others, or the key is your vision, vision and storefront decoration, and your clothes price will naturally go up.
Wish you success!