You’re fortunate to be able to do so. Many can’t afford to purchase private healthcare for ourselves and our families. Getting it through our employers is the most affordable option. Many people stay at jobs they don’t like because of benefits. Before ACA they had to due to preexisting conditions.
Can't argue with you regarding cost as the ACA kept prices manageable, and when Trump came in (his first term) I got to see my healthcare premium increase (now roughly 2.5x). This is something you may not see with employer covered insurance.
Plus the ACA did away with the bullshit preexisting conditions. I hear the Trump regime wants to bring them back. That will prevent people from leaving one provider for another because a new provider may refuse to cover the condition.
I suspect it is worse than that, as recently some hospitals and facilities have closed thus limiting access for many people (don't recall the specific states this happened in). This makes it even harder for individuals (and families) to get/keep coverage (regardless of providers/source).