I never use the multi-use trails one either:
the days after Christmas or ...
right after new years.

Both times are clogged with:
cute little kids taking their first wobbly ride on their ill fit bikes with doting parents either hovering right over them or ignoring. Or.....

Individuals and groups with their New Years resolution bike.

Sadly if we wait a couple weeks both groups will be gone and then the trail is MINE!