this is a good point, and it’s exactly the argument I make when people tell me they ‘need’ an overpriced multi tool. You can literally replace the bolts. I did that on my fender mounting bolts. I get that it may not be possible in every case, but you can certainly replace some, with a quick trip to a hardware store. I promise you’ll spend less money on a few replacement bolts than a multi tool. I mean, to each their own, but if you really want to carry as little as possible AND make any roadside repairs or adjustments as quick and easy as possible, putting some forethought into this and only carrying a few quality tools is a good way to go. I have no problem with needing a few more sizes than just 4,5,6mm, but if you have phillips or flathead fasteners on your bike, just replace them. You’ll save yourself time on the side of the road, you’ll save yourself frustration and you’ll save yourself money. It’s your bike, you should WANT to set it up to be as simple and easy to adjust/repair as possible. Forethought and a few quality purpose tools are better than a multi tool, any day of the week.