My sons finger

Jenny 🐸♉️ • SAHM of 4 full time nanny and married to a wonderful man that I love I have a crazy life but wouldn`t change a thing
My son will be three in December every since he was born he sucks on his pointer finger on his right hand he sucks it so much it has a bump on it it looks deformed ( don't worry dr said they can fix it after he stops the habit ) do you think he will eventually give it up or will he be 10 and suck his finger 
I got like a million pictures of him with that finger he can't sleep with out it in his mouth forget pulling it out he got a Kung foo grip on it if you manage to get it out you hear a big Pop and when he asleep you can hear the sucking noise real loud