Why is it

Why is it that when i drop B off to daycare for the first time ever he runs right in and takes over the place like he owns it! GEESH..I mean I know the alternative is way worse, but not a tear, no hanging on my leg, and it was a stretch for him kiss me good bye b/c he had to leave the toys..Gee I wonder who he takes after...On my first day of kindergarten I couldn't unterstand why kids were crying, I thought it was great! he is just paying me back for how my mom must have felt!