I agree, they are totally different. One set up you can rent a room or several in your house for an income of 14 k tax free since 2017. You can even built or buy a house with the goal of renting a room in a self contained unit. In the other set up, having followed all the rules and rent restrictions and price restrictions from day 1 (2015 in Dublin), one can rent a 2 bedroom apartment for less or barely more than 14k, pay management costs, maintenance costs, insurance, rtb... And pay tax on the remaining as well as lpt. I am not even talking about the risk one has to take in the investment or the mortgage one might have or the difficulty and costs that might arise with some tenants.
So yes, I fully agree, a totally different set up. One might say, it's an investment.
But to me, if one bought a 6 bedrooms mansion with a self contained unit to live and rent a room, it would also be an investment and one would not have to pay CGT on it when/if sold.
Some might say only LL with long term tenants who didn't increase the rent regularly are in that unfortunate situation. That is generally the line followed. But while I have no idea how many LL are in this situation, I certainly know that I increased within the law from day one and the rent was set up appropriately in 2014.
It's true, one renting a room might sit in front of the renter at breakfast. One could also say that the renter of a 2 bedroom apartment have full and unlimited access to a spare bedroom, a bathroom , a kitchen and a sitting room without having to sit down for breakfast with his landlord every day. So yes quite different. In this case the renter might even decide to rent that spare bedroom and make an income of up to 14 k tax free.
While one set up is encouraged and frankly seem to lead very high room prices in Dublin, the other is largely despised.