It means: If you spot a child you immediately reduce the speed to 15mph. If there is a child that you don’t spot you also reduce the speed to 15mph immediately - so you better watch out for children. If you are absolutely sure there are no children you realise that the sign is there for a reason, so if you decide to go over 15mph you go very carefully.
Legally speaking, it's hard to say, because it depends on the laws in the particular jurisdiction. There is a wide variation in how these warnings are phrased, and how they relate to local law, for example it may be limited to "when flashing" (which seems to be the pattern in Washington, but that's more a matter of practice than state requirement). Federal ...
On the contrary, voluntary intoxication is an aggravating factor in driving offences, particularly if the intoxicated driver causes the death of another person.
https://www.gov.uk/government/news/life-sentences-for-killer-drivers (2017 press release)
increasing the maximum penalty for causing death by dangerous driving
from 14 years to life
No, since you are a Canadian resident, you are required to have a driver's licence that is issued in Canada.
For British Columbia, you are required to do so within 90 days.
If you have not done so yet and it has been longer than the given period
you are driving illegaly
Once you have converted/switched your California licence to a British Columbian (...
This travel StackExchange question has some relevant discussion.
CVC §12505 goes into more detail than the fragments that are extracted and appear on the California DMV web site.
(a) (1) For purposes of this division only and notwithstanding Section
516, residency shall be determined as a person’s state of domicile.
“State of domicile” means the ...
From the CA DMV website https://www.dmv.ca.gov/portal/dmv/detail/pubs/brochures/fast_facts/ffdl05
You must provide 2 California residency documents
if applying for a DL, renewing a California commercial DL, or
converting to a REAL ID Compliant DL.
DMV will not accept an application without the accompanying residency