There are no plans by Government to introduce age restrictions on the sale of mobile phone devices.
I assume the Deputy is raising the question in the context of accessing content on mobile phones.
The Deputy may wish to be aware, that one of the key findings from 'The Growing Up In Ireland' report of July 2023, a joint project of the Department of Children, Equality, Disability, Integration and Youth and the Central Statistics Office, is that 98% of 13 year olds had sole use of a smartphone.
The Deputy may also wish to note that the issue of the availability of illegal and harmful online content and access to age-inappropriate online content is being addressed through the implementation of European Union regulations like the Audiovisual Media Services Directive and the Digital Services Act by the newly established independent regulator, Coimisiún na Meán.