What trend did they start?
When it comes to any trend, it’s said that whatever California does, other states follow, no matter the political or philosophical affiliation for a particular state. The mDL programs in said 17 states have raised concerns about mandatory digital IDs eventually coming to those states, and California obviously had a lot of sway in that.
HB 1181 is a 4A violation waiting to happen, which confirms that nobody should have an “unreasonable search and seizure” of anything that they bought and paid for without a reasonable suspicion and a warrant. The Supreme Court’s ruling on age verification being unavoidable was due to attempting to weasel out of 4A violations, which should have been covered if they weren’t already.
SB 2420 in Texas can be said the same as with HB 1181, as that’s once again a 4A violation waiting to happen. Google and Apple both call this out, but they may secretly want it in some form for them soon.