I rode for years without them then got my first recumbent.
First day got to the top of the "Big Hill" puffing and panting then stopped and fell over not even thinking about my feet. Lucky it was 6am and noone saw this old fool laying on his side with his feet clipped in.
Next day in the middle of town with two dozen people watching I did it again, just forgot I was clipped in.
In the next 7 years I've never fallen again and I don't even think about them anymore. I use them on all my bike now and hate riding with out been cliped in.
So think you've had your falls and you'll be right from now on.