Should you give up on personal domains

I just spent the better part of two months, ok only my spare cycles for the better part of two months, trying to get my domain back in working order.  My hosting company shut down my account.  But considering I haven’t actually put any content up for years are personal domains worth it?

When my son was born I registered a domain name for him, but now that he is 15 he doesn’t see any reason he would use it over any of the other ways that he keeps in contact with other people so I have stopped paying for the domain.