There are a couple of reasons why I have learned to use thicker tubes.
Sand here in Florida will find its way between the inner tire sides & tube walls, when you air down for our regular sugar fest for the best. However, since I have been using the Ride-On
tire sealant/balancer I have picked up nails & sheet rock screws, even barb wire spirs. Sometimes I won't know I have the damn little hitch hickers til I do my pre ride tire inspection. The thicker tubes helps the sealant work better & faster. There's more wall area for the Ride-On to seal. This gives the sealant's constant 8 oz moving a bigger surface to attach itself to. Been using this stuff for years & have had flats but never the dangerous blow out nor the stranded thing. It enables the rider to air up & go home w/o doing a field fix. Not all days of riding are sunny & along side a nice bike shop. There are a couple little direction about when you find a nail or a screw in the tire. Like unscrew the screw to lessen the hole. Don't just jerk it out. Most of the directions are common considerations.
Have used Ride-On in my tubless tires which can be pluged on the road & there is no inter problems w/ the plug not holding. Have put well over 5,000 miles on a rear Avon after discovering a stinking nail in my new tire. Just couldn't make myself discard a new tire after only a couple of hundred miles. I wouldn't suggest using a tire w/ a puncture in it.
Everytime I rode the thing I was thinking about that plug.
It should be noted that Ride-On doesn't suggest putting their product inside your flat tire, but use it to head off that flat.