ACORNS IN JULY?

The world has gone crazy with Climate Change, but finding TINY
acorns was a surprise, this morning.  I'm not an expert, but it seems a bit early for  OAK TREES to be producing these jewels, in July.
 I noticed the neighborhood has planted many of these native trees, all along the fence, in an undisturbed area.    

Yes, the leaves do not look like the more common RED OAK ,or  
PIN OAK TREES seen in other areas, but I believe this is the evergreen 
COAST LIVE OAK (Quercus agrifolia) native to California.  It grows from as far north as beautiful Mendocino, & south to Baja California in Mexico. It prefers the coastal areas; that is, up to 60 miles  (100 km) from the Pacific Ocean.  Maybe because the coastal fog gives a respite from the scorching Summer sun.

This tree can reach heights of 32--82ft (10--25m) & can live for 250 years.
It prefers well drained soil on the costal hills & plains.  These trees are easy to grow & are drought tolerant, but  do better with some irrigation or near a year round creek.  

They do not need fertilization; in fact they amend the soil over time, with their own leaves, building a a natural Mycorrhizal Fungus ( ????)
in the soil, which they need to thrive.  In time, they become islands of natural fertility, that improve the health of nearby plants.  They are also a host plant for many native butterflies.

I am wondering why they are not planted more often in landscapes,  here in Southern California.  They are not as showy as the Jacaranda or the
Crepe Myrtle, but these beautiful trees are easy to propagate; & may be better adapted to this increasingly hotter & dryer, wildfire prone environment.  

It's a mystery.  Angus & I will continue to visit them on our walk & 
watch the TINY ACORNS as they grow.