Our son attends a university, getting his graduate degree solely for parnassah. We keep very close contact, never a day goes by without speaking with him and his three chevrusa’s keep an equal vigil… If you turn away for one moment the possibility increases 100 fold that he could be swept away. If you send them its imperative to walk with them.
Nothing wrong with education. How strong is your child’s bond with Yiddishkite and how dedicated you are to them while they walk through the influences of yavan… Will determine the outcome.
Having said that, HaKodesh Barachu runs the world, what happens is His will…seek counsel from your Rav before you send them, remember you are the guardian Hashem chose for this child… Each child and situation is different.