I'm 75 and started attending Ontario public schools starting 70 years ago.

"Never the twain should meet"? Says who?

For years they did. My recollection is that we often started the school day with the (Christian) Lord's Prayer.

I'm sure we celebrated Remembrance Day with a (Christian) church service of remembrance in which (Christian) hymns were sung.

I don't feel these overtly religious practices damaged me in the  slightest. 

I now feel that comparative religion education should be offered to our students at the high school level. The more students learn of the ethical precepts of the major religions, the better they will be equipped for adult life.

For that matter, classes in our schools should also accommodate the works of Darwin that postulate that evolution is a strictly natural phenomenon that occurs without any divine intervention whatsoever.  

Knowledge of the ethical, spiritual and scientific  background of various religions (and non-religions) is useful in adult life.