I’m a beginner as well. I live in Switzerland an I’m above 50. I bought a 24" Quax by mid June 2019. 10 hours/1 month later I did randomly 15 foot. 50 hours/3month and 2000-3000 unplanned dismounts later I am able to freemount (50% success rate) and ride paved roads and flat easy gravel roads up to a 1/4 mile until I’m getting out of breath or falling down. Riding still feels somehow unstable but I am improving.
My longest ride so far was 3 miles and it took me 1:20 hours including all failed free mounting attempts.
I love to ride unicycle and it gives my life additional fun.
This is a great community which gives me lots of great information how to learn riding a unicycle. Thanks to all of you!!!