Baggies are not pointless. The trails are pretty overgrown at the moment meaning you’re brushing past bushes and thorny branches. Lycra would just be torn from you and would be a laddered mess by the time you’re finished.
i just find my arms get it from brambles, not upper legs.. I ride both with just lycra and bibs under baggies (3/4 bibs and std bibs).. don’t see any difference in protection really (in fact my mavic baggies often get caught on stuff), unless you are wearing super thick long 3/4 shorts..
so of late I have just ditched the baggies…. might start weraing y winter arm warmers to fend the brambles off though… look like a selfharmer!
anyhow each to their own 😉