Naked kids

Okay I guess the reason for this post is to see if anyone else would feel uncomfortable

So I have a girlfriend who has a 2 and 4 year old. Well whenever we go to their house they are always naked. The 4 yrs old will eventually put on clothes but the 2 year old never wears clothes or swim trunks when hes swimming. I understand if no one is around then its okay but I feel like if you have company over your kids should not be naked. But maybe that's just me?

And yesterday she posted a pic of her 4yr old and 6year old brother naked jumping into the pool.

Would anyone feel uncomfortable about naked kids running around that aren't theirs?