AIBU to try and stop it? It's crept up in frequency over the last couple of months to the point that I'm saying every 10mins or so "please don't bite your nails" and "can you take your fingers out of your mouth" etc. It's often met with "I won't do it again Mummy", only to resume as little as 5 seconds later (I realise it's absent-minded and don't actually expect the assurance of not doing it again to be upheld!).
The fingers haven't take on that really worn down and bitten appearance but the finger at the very edges of the nails are looking a little inflamed and snagged. I once dated a prolific nail-biter who had such deeply ingrained habit that it was unstoppable - his nails were a sore (and occasionally bleeding) mess. I'd like to nip this in the bud before that kind of problem is even on the horizon.
But is trying to nip it in the bud reasonable, or is it just normal toddler behaviour? I only know a handful of 3 year olds, none of whom nail bite, but it's a very small sample size. Any tips to help cut it down would be greatly received, as would reassuring stories from anyone who had a nail-biting toddler who just grew out of it! At the moment it's driving me a little bit crazy and I'm having to bite (ha!) my tongue to not get cross about it. I definitely don't want to make him feel like it's naughty but do somehow want to convey that it's not a good thing to do either.
(As an aside, we had a similar problem with habitual behaviour problem a while back in the form of an excessive amount of hands in pants and um... fiddling. It was much easier to fix as it would leave his fingers smelling of wee (only just potty training at the time). Having to wash hands every time they were found down pants meant it quickly lost its appeal. I can't think of a similar obvious consequence for nail-biting.)