A parent competition of a parent competition -- Good idea or not?

[AQ]

Is it a good idea to create a parent competition of other parent competitions? What do you gain/lose by doing it?  

Here's the pyramid I'm building. My questions pertain to Tier 4. 

Tier 1:         Celtic Nations Premier League (teams from Scotland, Wales, all Ireland)

Tier 2:         Celtic Nations Unified League (same)

Tier 3:         Separate child leagues for Scotland, Wales, all-Ireland, under one parent competition

Tier 4:        Parent competition: Celtic Nations Regional Leagues (4th tier of unified Celtic Nations pyramid)
                          |                                                    |                                                      |                                 
            Parent: Scottish Leagues        Parent: Irish Leagues                     Parent: Welsh Leagues
                          |                                                     |                                                      |
           Child: Highland League           Child: N. Ireland League                Child: Cymru North
           Child: Lowland League            Child: Irish Republic League         Child: Cymru South

I know that I can make those child competitions all part of one parent competition, with separate promotion/relegation paths, because I've done it before. I'm wondering if it's better to completely separate them with the parent of a parent model, in the hopes that it somehow minimizes the number of Irish/Welsh/etc. teams playing in Scottish/etc. leagues at some point. (Promotion and relegation always does that at some point.)

Any thoughts? 

Thanks so much. 

 

Edited July 15, 2023 by AQ

[av3ry]

If you are doing a Celtic Nations you need all the Cornish and Breton teams too.

[AQ]

I'm thinking of throwing the Cornish teams in with Wales. Isle of Man FC too.

Top Breton, Galician, and (yes) English teams would be invited for a one month cup modeled on the Leagues Cup between Liga MX and MLS. 

Edited July 15, 2023 by AQ