One day i was talking to him about humans and evolution. My parents got all angry at me for brainwashing my kid into believing such nonsense. I've argued with them on numerous ocassions about the facts and evidence, but they tend to not hear it or argue back to me as to why apes weren't "turning" themselves into humans anymore.
It's this type of closed mindedness and ignorance that turns me away from most religons. IMO they are the ones brainwashing and leaving no room to question, change or re evaluate a belief due to new knowledge.
The bible was written a long time ago and from second hand story telling, how accuarte could it be, especially after translations.
The world has come a long way since then, for better and worse probably. But scientifically we know alot more and can explain alot more than could be explained back then.

I should stop I could go on and on

I think you're doing the right thing keep teaching your son about science and teach him about religions and peoples belief systems and when he's older he'll be educated enough to make his own decision without being blindly told there is this and nothing else.

You can be a great, kind loving person believing in yourself!!!