Want to do PPL in Dublin
Best bet is to visit the schools/clubs . Don't take for gospel how great a place is from the guy who is after your money . Spend some time hanging around and talk to as many pilots/students as u can , this way you'll get a taste of the atmosphere and see would it suit you.
10-15k sounds about right if u are doing it over 2 years as you won't be current and regular learning your new skills in the plane . It can sometimes feel like 1 step forward and 2 steps back especially if any length of time occurs between lessons .
Weigh up everything . Weather in Ireland is sh1tty at best so factor in drives to the airfield only for your lesson to be cancelled due to low cloud or vis or anything else Mother Nature will throw at u . Also winter can be long and wet for irish aviation so grass runways may be closed for a considerable length or unusable 9 out of 10 days from September till February .
All in all jump on in and enjoy and remember you could be at the best school in the world but if u don't put in the work yourself it all means squat .