No time for sadness? HA! War and suffering continues unabated, "surprise"!
No, sadness becomes part and parcel of...everything! At least nowadays: New awesome toy! Kid got bad grade. Fun vacation last week! Friend's daughter died. PR riding bike! Dad needs help with a thing.
To your point: Life is rich with living. And yes, friends without kids, etc. talk about and buy toys. Cool! But/and no offense, gotta go now.
Life is rich and richly nuanced.