Why ubuntu touch couldnt be installed in all smartphone and tablette?

A smartphone and a tablette is a PC and it could be interresting to use smartphone and tablette with less fonctions instead of make its to trash.

I think users would have the choice.

Why ubuntu touch couldnt be installed in all smartphone and tablette?

A smartphone and a tablette is a PC and it could be interresting to use smartphone and tablette with less fonctions instead of make its to trash.

I think users would have the choice.