I learned to sew on 60's singers and like above, it always was the go forward mechanism.That is a hard instinct to break.
I finally did on my Janome's but the lift is way too far left, to compensate I added two layers of pool noodle to the shaft.
I never use it now so took it off about a year ago. It was wonderful for machine applique though.
The bobbin thread low sensor, comes on (to my knowledge) the machines that stitch out motifs.Having an embroidery module adds a Lot to the cost of a machine and go off way too early (again and again) for patchwork.