My 2-month-old has recently discovered his thumb. He used to often suck his hands, normal baby behavior, and occasionally would "find" his thumb and happily suck for a while - usually when he was starting to get hungry. However, in the past few days he has started to suck his thumb much more often, almost constantly.
At first I let him do it because it was occasional, he seemed to enjoy it - and because a 2-month-old sucking his thumb is just adorably cute :) But now I'm starting to get concerned. Should I leave him and assume he'll grow out of it, or will this just let him cement the habit and suck his thumb for years to come? (I really don't like seeing 3+ year olds still sucking...)
If I should try to discourage it, what can I do? Should I just leave him alone? And if not, what are some ideas to break the habit?
I've tried pulling out his thumb and sticking in a pacifier instead (which he doesn't seem to take too often)... but a minute later I'll pass by and the pacifier is out, and a minute later the thumb is back in. (I'd prefer an addiction to pacifiers than to his thumb, considering that pacifiers can be taken away... Thumb-sucking is a much harder habit to break.)
I did look at the 2 following posts, but found that my situation was different, hence my question: