My first adult bike was a Schwinn Broadway Hybrid. I put lots of miles on it for what it was. I did have to do some upgrades over time but I have had to do the same upgrades to an entry level Specialized road bike. The Schwinn is still wearing the cables it came with and the same chain. I did upgrade the rear wheel to a free hub one and I did upgrade the front wheel as well. I replaced the crankset but only because I ruined the oem one trying to get it off without the correct tool. Once I adjusted the derailleurs they have been flawless ever since. I finally, after 4 years replaced the handlebar grips. On my road and cx bikes I replace bar tape much more often than that! Many folks buy BSO's because that is all they are willing to spend at the time and frankly they likely would not buy a bike if it cost more. A BSO can be a good starting point if it lights the fire of enjoyment for cycling. It is also true that a bike shop bike that is properly assembled and tuned will more likely lead to an enjoyable experience. Folks like me that yearn for knowledge to fix things we own that don't work right are getting fewer each day. If I was not who I am my first bike purchase might not have worked out. For folks that are willing and able to learn from reading or watching videos starting with a low cost bike and setting the adjustments yourself can work. If you are a clyde though it would pay to also learn about wheels before riding much. I doubt mine would have been able to be saved as they were a poor design.
FWIW my Schwinn now gets less than 100 miles a year, way less.
I'm at 6156 miles YTD.
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Sir Mark, Knight of Sufferlandria