EOS 7D lens and accessory compatibility with EOS M50 Mark II

[Kaplang]

Will the Canon lens I use with my EOS 7D be compatible with the Canon EOS M50 Mark II ? And what about the battery, memory and wired remote shutter button? 
I’m considering getting the M50 if the 7D accessories and lens will transfer 

Thanks

[Tronhard]

It's not as dire as you might imagine.  The new lenses use a lot of composite compounds that are very light but robust - materials have come a long way in the last decades.  The main thing is the optics should be good, and I hope you will be happy with the results you get.

[Kaplang]

I'm comparing it to a Nikon F I was using many years ago. Still have it. Mostly metal and able to take a beating

[Tronhard]

Ah those were the days... I used an F1 as well but mostly Nikon F3 and Canon A1 units when I started. I still have one of each today.

As gear becomes more electronic its life expectation before most folks replace it is now shorter.

I still shoot on occasion with the Canon D30 Rel 2000 and D60 rel 2002. They are absolute tanks!

[Kaplang]

A lot of those older SLRs made it through the Vietnam conflict with a lot of abuse and came home in working order. Wonder if the plastic DSLRs of today are.able too?