Toddlers in bunk beds?

[Summerpeachblossom]

To put my just turned 4-year old in the top bunk? Other child, 2, would be in the bottom. Most beds say not recommended for under 6 years, which seems quite old? If the bed had hugh sides, proper stairs and kids are pretty sensible, is it safe? What am I missing? This is the kind of thing I'm thinking of - https://www.bedkingdom.co.uk/flair-furnishings-slick-staircase-bunk-bed-white.html?fo_c=3456&fo_k=95b5d01109732c27e50efb6366bac41a&fo_s=gplauk&cq_src=google_ads&cq_cmp=16738490762&cq_term=&cq_plac=&cq_net=x&cq_plt=gp&gclid=Cj0KCQjwkqSlBhDaARIsAFJANkjJtfRYbydX4cCpWh8xagcmS7qIIatL-63iGFoZBOH_66abLwcWj2EaAi1vEALw_wcB

My eldest kids were 4 and 2 when they went into a traditional bunk bed. I didn’t give it a second thought and NR er had a problem

I’m buying a similar one for my 3.5 yo

I wouldn't put a child that young in a bunk bed, it's very dangerous and many many children are injured (and worse) each year on them.
Minimum recommended age is 6.

Do you have a link? I've tried Google and can't find it. It's the only reason for an age that makes sense to me as children vary so much by ability and maturity.

Sorry @EmeraldFox , I don't. It was something I heard or read when my kids were younger and we were considering bunk beds so that must have been about 10 years ago at least so I don't remember.

I've heard of this happening to one little boy - absolutely horrific. But I couldn't work out how it had actually happened- if the sides are high enough and it's pushed up against the wall, surely it's impossible??