Is it normal to suck my thumb at this age
i am 20 and i have always sucked my thumb and since i was 18 i started playing with people's ears whilst sucking my thumb i only play with them when they are cold and i do it to my mates and family nobody understands why i can't stop and neither can i my friends don't mind me doing it but im curious of why im still doing it i suck my thumb when concentrating sleeping driving upset etc