Not every user is computer savvy so they may want said bloatware because it makes things "just work." Which is what a lot of non computer savvy people want. If your computer savvy and don't want the bloatware, just take if off your machine or build your own machine or wipe the os. Having bloatware on the machine isn't a problem for some people and it helps alleviate some of the cost of the commercial computer.
Protip: If you factory reset a computer when you first get it it usually deletes all the bloatware. Or at least it has for me.