I have no problem with the kid being super motivated and working his butt off, no matter the age. But seeing those 20 bats hanging on the wall sends red flags from dad's direction, IMO. I loved the jump to BBCOR, as nothing was more annoying than the bat obsession at the youth level.
As I told my kids (and my golf buddies), if you can hit, the bat won't matter. Likewise, we used to take note of all the $400 singles that only happened because of the temporary technology.
When my son was playing 9/10 rec ball one of the most popular bats was a $60 TPX Laser. Why? My son, one of the best hitters had one. A lot of parents figured it was all in the bat.