Explosives have a limited field of application. They can not be used in close quarters, nor when there is an inordinate risk of collateral damage. And even though people have been going on and on about "new tech" in the end of the 2nd decade of the 21st century, nothing has really changed for the Infantry since Reagan was President. Or Johnson 2 decades prior to him. Infantry has always been about putting boots on the ground, and the rifleman getting up close and personal with the enemy. Sorry, I do not see that changing in 10 years, or 20 years, or 30 years. And no amount of technology is going to change that. Small arms are the preferred weapon of the Infantry for many reasons. It is the safest to use for those employing it. They are light weight, and can put a lot of damage downrange at the enemy. You can carry a lot of ammunition for them, without being over-encumbered. After all, there is a reason why for decades the ratio was 2 grenades for every 3 magazines (90 rounds). It is pretty much impossible and unwise to even try to go into combat carrying 180 hand grenades. And small arms are pretty reliable. The more "advanced" a weapon system is, the more likely it will break or perform in a harmful way to the operator. And the more it will weigh. There is a reason why we do not try to strap every grunt down with 3 AT4s. There is a reason why not everybody in a rifle squad has a radio. There is a reason why not everybody has night vision scopes and GPS units (although a lot do carry civilian models that they bought from their own pocket). That is because ultimately, technology is not really that much of a game changer, on the Platoon-Squad level. At the Company level and higher such technology makes things much easier, quicker, and more accurate with faster intelligence. But at the individual? Not really.