Land prices in Portugal (away from the coast and from bigger cities) are pretty cheap for western European standards. It's getting noticed though - a quick YouTube search will show you plenty of examples of expats jumping on the opportunity.
IMO making a profit would be the hard part - the internal market is small and in general produce prices are low.
This actually happens in Portugal. When filling your taxes you can select a non-profit to receive a cut (don't remember how much though). Family and most friends live there, and never have I heard about this changing in any way how they feel about taxes.
[0] https://youtube.com/@MentourPilot