I've been a substitute/short contract (LTO) teacher for 6 years in Ontario but (when under contract) I get paid as a teacher with 3 years experience as salary is determined by days worked, not years served.
Between work stoppages, Covid closures and slow stretches, I've never eclipsed 50k in a year. Benefits and pension have conditions as well.
I love what I do but It's not a get rich quick gig. Far from it. Substitute teachers make a flat rate at the very bottom of the pay scale and many new graduates take a few years to get consistent work or their first few short term contracts under their belt before they can be considered for full time permanent roles. This means that the 10 year trajectory to 100k is more like 13-16 years for people who entered the field in the past 10 years. My partner does reasonably well but my wildly variable income killed our buying power when it came to mortgage approval and therefore we were a day late and a dollar short in every bidding war we found ourselves in just to get a 3 bedroom home on the outer fringes of the GTA. We're priced out of that market now.
This is all to say that I bristle when people throw 100k out there for teachers because that salary lands in the pockets of people who are probably well into parenthood, late 30's to mid 40's optimistically and have been climbing the ladder for a long time.
It's not as lucrative as people outside the field make it out to be.