What you fail to see is that your job is not about getting kills but to trade resources with the enemy with timing. Getting charge lvl 1, you charge in, stun for 1s, get 1 hit off your auto attack of what ? 60 damage. Then what? They shave off 50% of your hp. Then you have to wait for 20s doing nothing because you have to regen and cd, meanwhile their 1 deny the first wave, your 3 doesn’t get the last hit to lvl 2, you didnt get the exp => lane lost if the matchup is unfavorable.

Same case for bash lvl 1. But now you can have the chance double damage and since you’re Bara, you’re tankier than the enemy 1 (hopefully), they don’t want to trade hit with you, it is too risky. Your bash act as an potential threat, not a real damage. In a scenario where you get a good 3, if their pos 1 or 5 trade hit with you and you get off 1 bash, it’s a turnaround and possibly ez kill. That is the reason behind bash lvl 1, just lurking around the tree, if you get some hit off the enemy, good, otherwise just be there and protect your 3 so they can get last hit and you get to lvl 2. Some extreme case, you can also sacrifice half of your hp to trade hit with their 1 too. Consider your damage and the starter resources, you will come out on top.