My son has recently started enjoying his nails by biting them. As his Mom, I would deny any insecurities on his part. I think he really likes making that crunching sound when he bites his nails. Sigh.
I am close to putting some garlic on his nails to discourage this new habit. Plus, ginger is treatment for bad breath anyway, so maybe it will improve my son's morning breath as well since it makes me wanna retch (note, I am pregnant and super sensitive). I just haven't checked if some garlic on his fingers will burn his skin. Plus, I am a little scared that he'd accidentally rub his eyes with his gingered hands instead.
I try not to reinforce the habit but I really think I should do more to nip it in the bud.