Agree totally.
If you accept he is not (or may not be) an avid cyclist, then the advice to avoid certain roads has to be accepted as basically sound. After all, if one was giving advice to a child on avoiding "stranger danger", then, "do not talk to strangers" would be reasonable advice.
I am not saying that I am convinced by the hysteria over "stranger danger", and, I am not saying children (or anyone else) should not be able to speak to strangers, but, the reality, particularly in certain urban situations, may be that it is wise not to do so.
In short, we should all be able to go about our daily lives, without fear of being attacked, run over or otherwise molested, but, the reality is, this is, sadly, not always so. Equally sadly, I cannot see any indication that a speedy improvement in the situation is likely, no matter who much we all protest.