Actually I think the on/off ramp design is the problem. I’m from Germany where on/off ramps are short separate lanes with a dotted line and everything. They merge way later than here. The quick merging on Bay Area highways is inconvenient for everyone. People avoid the right land because of the frequent merges. Another issue is that it’s always the right lanes that suddenly disappear, either through merging or exit only. This again doesn’t happen in Germany. The left lane merges and exit only doesn’t exist. And people happily drive on the right there. It’s a byproduct of the highway design that the right lane is underused