Answer the question about text:

I always tease my kids by showing them pictures of myself at twenty , and twenty - five , and thirty . I tell them , " Look , your old man had a full head of hair right up until you started showing up . " They giggle , partly because it 's true , but mostly because they also know it was inevitable and the timing was simply serendipity .

What may be the reason to show my kids those pictures ?
To let kids know what i was like when I was younger