Does my seedling look okay???

Hi everyone, I got given a bonsai starter kit which I tried out and to managed to get some seeds to sprout! I am a newbie at this and not sure what looks right or wrong! I can tell that the leaves are a nice green but why is my stem an odd pink purple colour? Is this okay or is it dying? Any advice would be great! Thank you!

The seedlings looks fine to me. But really hard to tell without knowing what species it is. But the purple might be normal colour for that species.

They seem healthy! The stem will turn brown, the purple is a phase in the growing process.
Good luck further!

PS: I believe you misplaced your question in the wrong forum section