Bro, 10% might be pretty high these days. 5% might be pretty right on. Hard to gauge that though. If you live in SF you might think only .005% know the truth, if you live in smalltown, USA Alabama - you’d probably think 20%.
From the time my kids could speak they knew:
JESUS = GOD
John 1:1-5
They know it, seared it on their minds & hearts. My kindergartner had his first “argument” this year with a kid clearly from a broken home who disputed it. Then 2 or 3 more jumped in and “bullied” him over that statement. He was stunned/broken-hearted over it - but I told him to expect that. We still treat those people with love & respect, but they who refuse to see the truth will always outnumber us know do know it.
I was so proud of him, his faith is so strong.
If the time ever comes where they line us up to finish us off, I know my children will be right at my side.
The world hates your kid because they hate Christ but at least he’ll know who his friends are and who he needs to not associate with(bad company corrupts morals). Yet he is only 5 and not a 35 year old street preacher. You may have to interpose at least until he is 6!(HAHA!) As he matures he’ll go thru the fire of trying to figure out his own separate faith and belief vs’s that which you’ve tried to teach him...in other words, God’s path for his own life separate from yours. It will be hard to watch some of the stumbles....but if as the Bible says you have trained him up in the way he should go, he will not depart from it as he grows older.