No one has to be the cleric in a 5e party -- there's enough other ways to heal (either with druid/bard/paladin, or through short rests), and buffing is a reasonable tactical choice, but because of the concentration mechanism it's not a necessary choice for a cleric player.
But it's a fun class, with a variety of exciting build possibilities.
But it's a fun class, with a variety of exciting build possibilities.