There are many, many threads on this forum that state why it is not healthy for multiple snakes to live in the same enclosure. You can do a search for the reasons... here are a few:

1. If one snake gets sick, they will all get sick. How are you going to be able to tell who got sick first? You won't.

2. Snake are NOT social creatures. They do NOT enjoy each other's company. That cuddling up they're doing in your pic... nuh uh, that's them competing for the best hot spot in that hide. And they ARE competing. One is going to be dominant over the others, is going to get the best hiding spot, the best hot spot, the best cool area... have you noticed them following each other? That's why.

3. You may experience feeding problems. If you haven't you will. Against, the dominance issue.

4. Snakes are incredibly sensitive to stress... putting them in a situation where they have to compete stresses them out. This lowers their immune system and asks for all sorts of troubles.

5. It's not best for your kids, so why would you do it?