I am getting my bathroom redone and looking at wall hung toilets and thinking... Wwwhhhhhaaat? Surely they are going to fall down when children inevitably bash them around too much or stand on them to reach something? Same with wall hung sinks.
Wall hung toilet = you can mop under the toilet. What's not to love?
Bog standard haha! in Europe, I have never heard of or encountered any issues with toilets of sinks falling off walls. And I am pretty sure that floor mounted toilets drain into the wall at 90 degrees, just like wall hung ones.
I have put in several wall hung loos (with proper metal frame - see Grohe or Geberit) and basins. no problems with any of them. they're great, make the room look bigger (as you can see the whole floor) and much easier for cleaning.
To clarify, I'd stop kids from standing on loos so they don't break the toilet seats and also don't overreach and either knock things off or fall off themselves - not because of their weight on the loos!
Re access, the usual design is to have a large flush button panel in the front of the cistern boxing in, which removes to allow access to the cistern. However I would recommend also having a removable shelf across the top of the cistern box, so you can access from the top as well as the front.
We've always done this (the shelf is not screwed or glued in, just masticked so can be removed fairly easily if need be by cutting the mastic) though in fact none of our wall hung loos have ever gone wrong... yet!
Mine have even been able to cope with people having sex on them. Several times. But, the actual toilet seat may then break, but the toilet is not falling off the wall even if two adults are shagging on them.
(not me and dh, I should add, none of us were involved in the shenangians of our tenants)