Quoting from the Irish Times article:
*Young Fine Gael has come out in support of lowering the age of consent.
It called for an criminal liability to be absolved where the ages of consenting individuals was less than two years apart.
“A lower age of consent will bring our laws into line with other EU countries and provide the legal recognition that people are having sex at a younger age,” the organisation’s president Dale McDermott said in a statement.*
If I understand that correctly, the lowered age of consent would mean that a person who is 18 year old would be able to legally have sex with a 16 year old. The proposed change would not allow anyone older than 18 to be able to have sex with a 16 year old. The law would only affect persons who are 16-18 years old.