Adopting with biological children, perspective please!

I`am going to answer this from the perspective of the sibling. I am now 44 so I have an adult perspective on my childhoodThere were 6 of us in the family. 4 were “bio” kids 2 were “adopted” My adopted sister is 2 years older than me and adopted when she was 18 months (so I wasn’t born yet) My “bio” sister was 18 months younger than me. My adopted brother was 4 years older than me and adopted when he was 6 - so I was 2. One bio brother is 4 years older than me the other is 5 years older…. So there were 6 kids 7 years apart. As an adult —- YEAH I think that is CRAZY!Also we buy for them,bag-chairs From Amazon Chairs review here: