Is Find Familiar really strong or am I missing something ?

All my caster players have this in their spell list : it allows them to scout ahead for any trap, enter locked room (small spider going under the door), gives them Blindsight (Bat), or simply use the Help action every turn in combat to give them permanent advantage on Attack Rolls or Ability checks (which is honestly crazy for martial oriented half-casters).

They don't even need to use spell slots on it since it's a ritual...

Am I missing something or is this an auto-include, borderline gamebreaking spell available to (almost) everyone at lvl 1 ?

I'm all for players finding creative solutions to a problem, but right now every brainstorming in my party boils down to "which Familiar will be available to solve this issue".