The idea of two people opening a 24-hour noodle shop is a good one for you, and it's theoretically feasible if you hire employees. If it is completely operated by your two families, then the feasibility of maneuverability is relatively low. I can tell from the question you asked that you probably haven't worked in the food industry or opened a restaurant. You know how much effort it takes and how many things you have to do to open a 24 hour noodle shop with two people.
If you hire employees, it is theoretically possible, but the main problem is the location. You have to realize that it's very, very hard to find a location for a 24-hour restaurant in a city. Either there is a suitable location, but it doesn't allow for a caterer. Either the location is suitable for a 24-hour caterer, but there is no location, no frontage for rent or transfer. The other one is your skills, if you have bad skills, it is also very difficult for your store to succeed and survive. The risk of being in the restaurant business is very, very high, a successful restaurant, location, taste, marketing have to do better.
If you don't hire employees and everything is done entirely by two people, it almost never works. I used to run a kiosk where my wife worked and I manned the store alone. Open from 9:00 am to 12:00 pm, just replenish the goods, nothing else to do, do you know how tired it is? Just standing still can fall asleep. You have to know that their own store is no holidays, basically all year round, on the New Year's days to take a break. Even if you have strong perseverance, can adhere to, by then not only the body is tired, the heart is more tired. Even if you give you more money, I think no one will choose to want. I think it's better for you to change your mindset, what do you all say?