What is the disadvantage of leasehold?

What is disadvantage of leasehold includes several financial and legal drawbacks compared to freehold ownership. Leasehold, which is property tenure where you own building but not land, with land owned by freeholder and lease for fixed term like 99 to 999 years in UK and other countries, common for flats, has disadvantages including limited ownership period with lease decreasing in length each year, with value dropping sharply when lease falls below 80 years remaining, making it hard to sell and mortgage, with lease extension costing £10,000 to £30,000 plus legal fees for 90 year extension, and ongoing costs including ground rent payable to freeholder, typically £100 to £500 per year but some with doubling clauses doubling every 10 years leading to high costs over time, and service charges around £1,000 to £4,000 per year for maintenance, insurance, and management of building, which can increase unpredictably, and restrictions on alterations, subletting, and pets requiring freeholder permission, with freeholder able to refuse, and risk of forfeiture if you breach lease terms or fail to pay ground rent and service charges, and less control over building management, with freeholder choosing managing agent. So disadvantages of leasehold include decreasing lease length reducing value, costly lease extension, ground rent and service charges adding thousands per year, restrictions on use and alterations, and risk of forfeiture, making freehold more attractive for houses.