From the NY Times article:
Parents have a love-hate relationship with firsts. Some they like: the first smile, the first steps, the first sleeping through the night. Others they dread: the first flu, the first tantrum, the first broken bone. As children get older, the firsts become more nuanced, generating both joy in our children’s independence and fear of their slipping away: the first summer away, the first date, the first driver’s license.
But few firsts generate more ambivalence than the first cellphone.