I've grown for almost 10 years without ever owning a PH meter.... Not necessary if you live somewhere with consistent tap water in your home.
I've tested the tap at my home 2-3 times with test strips over the years and had no change at all.
Growing in coco all the while and never once had issues.
I think some growers try to add too much nonsense to their feed and have bad results, then jump on the PH train. When nutrients are dialed in with correct dosing, the plants thrive.
Sending good vibes from Tejas!