In sexual relations?
In an overpopulated world, the unnecessary biological response, called 'love', is rather obsolete.
At the end of the day, it depends if you're the type of person who for some reason relies on 'love' to survive, even in an age where it is obsolete.
So it depends what type of person you are, but at the end of the day falling in love with people is not essential.
I'd consider love for one's family, or other friendships are far more important if one wants to live a happy life, because for a lot of people, sexual relationships bring a lot of heartache and will distract them from day to day life.
Love doesn't require it to be said out loud, it's the feelings inside that count, not the words from one's mouth.