Because that weird guy who was looking for the hamsters ambushed us after Botamon hatched, and I don't want him putting weird ideas in its head.

[Erika's opinions about Gundam are scrawled all over her face.]

So it's important to dilute his influence by exposing it to different people. [And Hajime is more social, ergo.] I can't look after it all the time, anyways. It could sneak off while I'm coding.