Even though a car seat can be installed with a seat belt the latch system is clearly superior for a number of reasons.
1. The latch base straps can be tightened and locked in tension securing the child seat much tighter into the vehicles seat while a seat belt relies on its inertia lock and therefore will always have some slack.
2. The latch system utilizes a top tether securing the top of the seat back and preventing forward rotation which a seatbelt cannot prevent .
3. Since all modern vehicles are equipped with shoulder restraints it becomes an issue when in use with a child seat because the angled shoulder belt usually pushes the child seat to the side and make securing it iffy at best.
True if you're doing it incorrectly
Firefighter training here
Put your knee or both knees into the car seat then buckle the belt
Now pull the belt all the way out to activate the self-locking mechanism - almost EVERYONE misses this step
Still holding the excess, make a loop of webbing on the side with the buckle, and use this loop to yank all the slack out of the lap portion while you're putting slightly more weight on the opposite side - to keep the seat from sinking to the buckle side
Feed excess back into the shoulder clickity clackity thing
This entire time, your weight has been in the seat - once you get off - the lack of weight will further pin the car seat into the cushion
Everyone one of my "belt" installs doesn't move at all in any direction
FYI - you should still use the top tether with a seat belt unless your car seat says no
---------- Post added at 04:24 PM ---------- Previous post was at 04:21 PM ----------
My daughter told me she approves of my raptor.. right after we done a 0-60... look at that face lol
I've got my armor on just in case
If she's not almost 5' or 80lbs, she shouldn't be sitting in the front - states' laws are antiquated, look at what most car seat organizations state
That's usually around age 12 for most kids