That's not what the dictionary definition of sanitary is. Seriously, go look it up. According to Merriam-Webster, it first says: Of or relating to health. Plastic leaching into stuff is not healthy. No one has ever proved that it's safe. The burden of proof is always proving that something is harmful, and then it's classified as harmful. The problem is, we don't know something is harmful for decades, or longer. People literally believed that it was safe to have cocaine in Coca-Cola and that cigarettes were completely harmless. We also believe that vaping is not harmful, and that marijuana isn't harmful either. Who knows if that'll be discovered as being extremely harmful to your health in 100 years or so.
So to me personally, I don't find it sanitary to involve something in the process that you have no idea whatsoever if it affects your health or not. I would call that unsanitary.
There's that reddit-esque toxicity, missed that /s why make gaslighting comments like this? As someone pointed out below, most subreddits have karma barriers, and top-level subreddits like 'gaming' also put into place ridiculous rules like no reddit auto-generated usernames, which isn't something that reddit tells you when you signup. So you make an account, have genuine interactions, then get permabanned from 90% of the community because of a rule meant to deter bots (that doesn't even work). My karma on reddit is generally positive, but that doesn't matter because moderator opinions over-rule the karma system, which makes no f*cking sense. If people genuinely like your post and appreciate it, but the mod of the subreddit doesn't like it, banned. Mod doesn't like you, banned. Mod doesn't like other communities you've commented on, ban. There was a whole debacle about unpopular opinion banning people for commenting on another subreddit so people made true unpopular opinion and true off my chest...and now both of those are just as exclusive and toxic.
So tl;dr: No it's not "just a me thing"