Personal vignette, before I got my e-bike I would ride in on weekends, occasional weekday, and very occasionally pick up groceries.
With the e-bike, I biked almost every day since May and did maybe 50% of my shopping by bike.
For me, the main reason I biked more is speed, on the e-bike if I push I can get to work in 30 min without being completely wiped out. On a regular bike, pushing only made me tired and didn't make me faster.